If there is one thing I have learned from years of troubleshooting Windows PCs, browsers, and software, it is that the same symptom can have a dozen different causes — and working through the wrong ones in the wrong order wastes hours. This complete guide to fixing errors is the master index for every troubleshooting article on SolveTechToday, organised by category so you can get directly to the specific fix guide for your problem without searching around. Whether you are dealing with a Windows 11 blue screen, a Chrome page that refuses to load, a Wi-Fi connection that drops every ten minutes, an application that will not open, or a peripheral that has stopped being recognised — everything is here, linked directly to the in-depth guide with every proven fix.
The complete guide to fixing errors on this site is built around a simple principle: one problem, one dedicated guide, every fix for that specific problem in one place. Each linked article below covers its topic in full — with diagnostic steps, step-by-step fixes, error code explanations where relevant, and honest guidance on when a fix is worth trying and when it is not. Use the section headings to navigate to your category, scan for your specific error, and click through to the full guide.
Complete Guide to Fixing Windows Errors
Windows errors occur at the operating system level — problems with startup, performance, stability, updates, and core system components. These are the problems that make the entire PC feel broken rather than just one application. In my experience, Windows errors fall into four distinct groups: boot failures (when Windows will not start), performance problems (when it starts but runs badly), stability issues (when it freezes, crashes, or shuts down incorrectly), and update and component failures (when patches break things or system tools stop working). The guides below cover every scenario in each group.
Startup and Boot Failures
When Windows 11 will not start at all, the Windows 11 not booting guide covers every approach from the Windows Recovery Environment — Startup Repair, BCD reconstruction using bootrec commands, SFC and DISM from recovery, System Restore, and the Reset Windows option when all else fails. I have used the BCD rebuild fix personally after a Windows Update interrupted and left the boot configuration in an unusable state. For the specific scenario where the screen stays black rather than showing any error, the Windows 11 black screen guide covers the Win+Ctrl+Shift+B graphics driver reset shortcut, Safe Mode driver rollback, and the Explorer.exe restart that resolves the post-login black screen without a full reinstall.
Performance Problems
When Windows 11 starts but runs slowly, the problem is almost always one of three things. The Windows 11 high CPU usage guide identifies every process responsible for CPU spikes — from SysMain and Windows Defender scans through to malware and driver interrupt storms — with the targeted fix for each rather than a generic list of things to try. For disk speed problems specifically, the Windows 11 high disk usage guide covers the 100% disk usage pattern, SysMain, failing drives, and virtual memory paging as the main causes. For general post-update slowdowns, the Windows 11 slow after update guide covers what is normal temporary background processing versus what needs fixing — including power plan resets and driver rollbacks that resolve update-introduced slowdowns.
System Stability — Freezing and Crashes
The Windows 11 keeps freezing guide is the one I point people to most often for random lockups, because the cause is almost always hardware — overheating, RAM faults, or a failing drive — and the guide covers how to diagnose which one applies using HWMonitor, the Windows Memory Diagnostic, and CrystalDiskInfo before touching any software settings. For the Blue Screen of Death, the Windows 11 BSOD guide decodes every stop code — IRQL_NOT_LESS_OR_EQUAL, MEMORY_MANAGEMENT, CRITICAL_PROCESS_DIED, WHEA_UNCORRECTABLE_ERROR, DPC_WATCHDOG_VIOLATION — and explains what each code actually indicates about the underlying cause. For shutdown problems, the Windows 11 won’t shut down guide covers Fast Startup conflicts, hung applications blocking shutdown, registry timeout adjustments, and driver unloading failures.
Updates, Components, and Shell
When Windows refuses to apply patches, the Windows 11 not updating guide covers the troubleshooter, update cache clearing, DISM and SFC repair, error code breakdown, and manual update installation via the Microsoft Update Catalog for updates that consistently fail through the normal mechanism. When a patch removes internet access entirely, the no internet after Windows 11 update guide covers driver rollback, network stack reset, the Network Reset function, and the update uninstall process — including how to apply these fixes when you have no internet on the affected machine. For the taskbar, the Windows 11 taskbar not working guide covers Explorer restart, PowerShell re-registration, and creating a new user profile for profile-specific taskbar failures. For Windows Search, the Windows 11 search not working guide covers SearchHost process restart, index rebuild, SFC repair, and scope configuration for when specific files cannot be found.
Complete Guide to Fixing Browser Errors
Browser errors are the most frequent category of tech problems I deal with, which makes sense given how much time most people spend in a browser. The complete guide to fixing errors for browsers covers Chrome, Firefox, and Microsoft Edge — the three browsers that account for the overwhelming majority of usage. The key principle across all browser troubleshooting: always test in another browser first. If Chrome will not load a page but Firefox loads it fine, the problem is Chrome-specific. If no browser loads it, the problem is the network.
Google Chrome Error Fixes
The Chrome error guides cover both specific error codes and general performance and stability problems. For specific connection errors, the site has dedicated guides for every major Chrome network error: ERR_SSL_PROTOCOL_ERROR (SSL handshake failure, often caused by a wrong system clock), This site can’t be reached (the parent error that includes multiple sub-codes each with different fixes), DNS_PROBE_FINISHED_NXDOMAIN (DNS lookup completed but no domain found), ERR_CONNECTION_RESET (connection established then dropped), ERR_TIMED_OUT (no response within the timeout window), ERR_NAME_NOT_RESOLVED (DNS resolution failed), ERR_CONNECTION_REFUSED (server actively rejected the connection), and ERR_NETWORK_CHANGED (network changed during page load).
For SSL certificate errors: Your connection is not private covers every certificate error code including the system clock fix that resolves the majority of cases, and ERR_CERT_COMMON_NAME_INVALID covers the domain mismatch error that appears on misconfigured sites and internal tools. For redirect errors: the ERR_TOO_MANY_REDIRECTS guide covers the cookie clearing fix that resolves most redirect loops in 30 seconds.
For Chrome performance and stability: the Chrome keeps crashing guide covers Memory Saver, extension conflicts, hardware acceleration, and profile corruption for the mid-session crash pattern. The Chrome keeps freezing guide covers the freeze pattern separately — same symptom visually but a different diagnostic and fix path. For memory problems, the Chrome out of memory guide covers the Aw Snap crashes on memory-constrained systems. For pages that will not display: the Chrome not loading pages guide covers error codes and connection failures, while Chrome blank screen covers the specific variant where pages load but render as white. The Chrome crashing at startup guide covers the special case where Chrome will not open at all, with fixes that work from outside the browser.
Firefox Error Fixes
The Firefox not responding guide covers the full range of Firefox freezing and hanging scenarios — cache clearing, extension isolation, hardware acceleration, memory settings, and the Firefox Refresh for persistent cases. The Firefox keeps crashing guide covers unexpected closure rather than freezing, including crash report analysis and Troubleshoot Mode testing. For video problems, the Firefox not playing videos guide covers Widevine DRM for streaming services, hardware acceleration conflicts for the black/green screen pattern, and extension interference.
Microsoft Edge Error Fixes
The Microsoft Edge keeps crashing guide covers the mid-session crashes with extension testing, hardware acceleration, profile repair, and the Repair function in Windows Settings. For loading failures, the Microsoft Edge won’t load pages guide covers INET_E_RESOURCE_NOT_FOUND, DNS flushing, TLS settings, and the proxy and VPN interference that causes Edge-specific loading failures. When Edge will not open at all, the Microsoft Edge not opening guide covers ghost process cleanup, Default profile folder repair, and the setup.exe repair command for damaged installations.
Complete Guide to Fixing Network and Internet Errors
Network errors are uniquely frustrating because they cut off access to the very tools you would normally use to research a fix. The complete guide to fixing errors for networking covers Wi-Fi, Ethernet, DNS, and VPN problems — with the important principle that checking whether the problem affects all devices or just one device should always be the first step, since that single check separates router-level problems from PC-level problems immediately.
Wi-Fi Problems
The Wi-Fi not working on Windows 11 guide covers complete connection failures — missing Wi-Fi icon, no networks showing, connected but no internet — with the adapter restart, DNS flush, driver update, power management fix, and Network Reset covering every scenario. For the intermittent disconnect pattern that is more annoying than a complete failure, the Wi-Fi keeps disconnecting guide covers power management on the adapter, driver roaming aggressiveness settings, channel congestion, and router firmware updates. When the correct password is rejected, the Wi-Fi password not working guide covers the corrupt network profile fix (forgetting and reconnecting) that resolves the majority of authentication failures.
Wired and DNS Errors
The Ethernet not working on Windows 11 guide covers wired connection failures from physical cable checks through driver reinstall, static IP assignment for DHCP failures, and power management settings that cause intermittent drops. For DNS specifically, the DNS server not responding guide covers the full fix sequence — switching to 1.1.1.1, restarting the DNS Client service, Winsock reset, and router DNS configuration — with a ping diagnostic that confirms whether the issue is DNS or a deeper connectivity problem. For VPN problems, the VPN not connecting guide covers the full range of connection failures across different VPN protocols and providers.
Complete Guide to Fixing Software and App Errors
Software errors affect the productivity, communication, and creative applications that most people depend on for work and daily computing. The complete guide to fixing errors for software covers the applications I have seen fail most frequently and most disruptively.
Communication App Fixes
For video calling: the Zoom not connecting guide covers the status check, firewall rules, TCP mode switching, and browser join as an immediate fallback when the meeting cannot wait. For audio problems in Zoom specifically, the Zoom audio not working guide covers device selection, Windows permissions, driver updates, and the echo and dropout fixes. The Microsoft Teams not working guide covers cache clearing, sign-out and in, audio device configuration, camera permissions, and Teams repair through the Windows Apps settings. The Slack not working guide covers status checks, cache clearing, firewall exceptions, and audio troubleshooting for Slack calls. The Discord not working guide covers cache clearing, audio settings, Windows microphone permissions, overlay configuration, and the full reinstallation process for persistent Discord failures.
Productivity and Storage App Fixes
The Outlook not opening guide covers the invisible ghost process fix, Safe Mode launch for extension isolation, profile creation to bypass corruption, and Online Repair for damaged installations. For cloud storage: the OneDrive not syncing guide covers pause and resume, sign-out and in, storage quota checks, firewall exceptions, and the OneDrive reset command. When storage space itself runs out, the OneDrive storage full guide covers Recycle Bin emptying, large file identification, backup folder management, and the upgrade decision. The Google Drive not syncing guide covers restart, re-authentication, cache clearing, firewall, and Drive for Desktop reinstallation. The Dropbox not syncing guide covers quota checks, filename restriction violations, proxy settings, and account relinking. For the music player, the Spotify not working guide covers the manual AppData cache deletion that fixes the black screen launch failure, firewall exceptions for the offline pattern, and audio device configuration for playback problems.
Complete Guide to Fixing Driver and Hardware Errors
Driver and hardware errors affect the physical components of a PC — displays, audio, input devices, storage, and connected peripherals. These are the errors that can masquerade as software problems, which is why good hardware troubleshooting always starts with physical checks before touching drivers or settings.
Audio and Input Device Fixes
The no sound on Windows 11 guide covers the full audio fix sequence — output device selection (the most common fix), audio service restart, driver reinstall, and audio format settings — covering every pattern from a missing speaker icon to audio that appears working but produces silence. For microphone problems, the microphone not working on Windows 11 guide covers the privacy permissions reset that Windows updates frequently trigger, exclusive mode blocking, default device selection, and driver rollback. The Bluetooth not working on Windows 11 guide covers the missing toggle fix (Bluetooth Support Service restart), driver reinstall, pairing data corruption, and the RF interference that causes audio stuttering and range problems. For laptop input, the touchpad not working on Windows 11 guide covers the auto-disable setting that turns off the touchpad when a USB mouse is connected, manufacturer driver installation, and BIOS touchpad settings.
Display and Storage Fixes
The HDMI not working on Windows 11 guide covers physical checks, force detection in Display Settings, GPU driver updates, and the HDMI audio routing that causes video-works-but-no-sound problems. For GPU detection failures, the GPU not detected guide covers PCIe slot reseating (more common than most people expect), BIOS display output settings, DDU clean driver installation, and power supply capacity checks. When drives go missing, the hard drive not showing up guide covers Disk Management status codes — unallocated, not initialized, missing drive letter — with the appropriate fix for each, and importantly explains when partition recovery should be attempted before initialisation to avoid data loss. The USB device not recognized guide covers USB root hub restart, driver reinstall, selective suspend power management, and power delivery for drives that need more current than a single USB port provides. For printers, the printer not recognized guide covers Print Spooler repair, manufacturer driver installation, and network printer IP address reassignment.
A Note on Approach
Every guide in this complete guide to fixing errors is built around the same principle I have applied to troubleshooting for years: identify the specific pattern of the problem first, because the pattern tells you almost everything about the cause. A PC that freezes only under heavy load has a different problem from one that freezes randomly at idle. Chrome that will not load on a single site has a different problem from Chrome that will not load anything. Matching the symptom pattern to the cause before trying fixes is what separates a 10-minute resolution from a two-hour troubleshooting session where nothing works because you were fixing the wrong thing.
When a problem is hardware-related rather than software — a failing drive, a faulty RAM stick, a GPU that has physically failed — no software fix will resolve it. The guides in this complete guide to fixing errors flag these hardware endpoints clearly: when to run CrystalDiskInfo for drive health, when the Windows Memory Diagnostic indicates a RAM replacement rather than a Windows reinstall, and when a component needs testing in another machine to confirm failure before buying a replacement.
For the software tools that help maintain a healthy Windows system and prevent many of these errors from occurring: the complete guide to Windows software covers antivirus, backup, performance, and utility applications across every category. For anything not yet covered in the guides linked above, the Microsoft Support website is the official resource for Windows-specific errors — their known issues tracking, update history, and diagnostic tools complement the practical fix guides here for edge cases and organisation-specific configurations. For browser-specific problems not covered above, the Google Chrome Help Centre maintains comprehensive documentation on Chrome errors including enterprise and managed device scenarios.
More Guides in This Series
These additional guides in the same cluster cover specific scenarios and complementary topics:
Driver & Hardware
Battery Not Charging on Windows 11 · Bluetooth Not Connecting on Windows 11 · Bluetooth Speaker Not Connecting on Windows 11 · CPU Overheating on Windows 11 · Display Driver Stopped Responding · Fingerprint Reader Not Working in Windows 11 · GPU Overheating on Windows · Game Controller Not Recognized in Windows 11 · HDMI Audio Not Working on Windows 11 · Headphones Not Working on Windows 11 · How to Fix RAM Not Detected Windows · How to Fix SD Card Not Detected Windows · Keyboard Backlight Not Working on Windows 11 · Keyboard Not Working on Windows 11 · Keyboard Typing Wrong Characters · Laptop Fan Not Working · Laptop Touchpad Not Working · Monitor Going Black Randomly · Monitor Not Detected on Windows 11 · Mouse Cursor Lagging in Windows 11 · Mouse Not Working on Windows 11 · Mouse Scroll Wheel Not Working · NumLock Keeps Turning Off in Windows 11 · Optical Drive Not Working in Windows 11 · Printer Not Printing in Windows 11 · Printer Not Working on Windows 11 · Printer Offline on Windows 11 · SSD Not Detected on Windows 11 · Screen Flickering on Windows 11 · Screen Resolution Keeps Changing in Windows 11 · Second Monitor Not Detected on Windows 11 · Sound Crackling on Windows 11 · Sound Not Working on Windows 11 · Speakers Not Working on Windows 11 · Touchpad Not Working on Windows 11 · Touchscreen Not Working on Windows 11 · USB Device Keeps Disconnecting · USB Hub Not Working · USB-C Not Working on Windows 11 · Webcam Not Working on Windows 11 · Windows 11 Audio Crackling · Windows 11 Audio Not Working · Windows 11 Audio Output Not Switching · Windows 11 Bluetooth Headphones Lag · Windows 11 External Hard Drive Not Recognized · Windows 11 HDMI No Sound · Windows 11 Keyboard Not Typing · Windows 11 Monitor Not Detected · Windows 11 Mouse Not Working · Windows 11 Numlock Keeps Turning Off · Windows 11 Pen Not Working · Windows 11 Scanner Not Working · Windows 11 Second Monitor Not Detected · Windows 11 Touchscreen Not Working · Windows 11 Webcam Blurry · Windows 11 Webcam Not Working · Wireless Mouse Lagging? The USB Port Fix Nobody Mentions · Wireless Mouse Not Working on Windows 11
Network & Internet Errors
DNS Not Resolving in Windows 11 · DNS Not Resolving on Windows 11 · DNS Server Not Responding · DNS_PROBE_FINISHED_NXDOMAIN · Ethernet Keeps Disconnecting · Ethernet No Valid IP Configuration · Ethernet Slow on Windows 11 · Ethernet Slower Than WiFi · Ethernet Slower Than WiFi in Windows 11 · High Ping on Windows 11 · How to Fix NAT Type Strict Windows · How to Fix WiFi 5GHz Not Showing Windows 11 · IP Address Conflict on Windows 11 · Internet Connection Keeps Dropping · Internet Keeps Cutting Out · Limited Connectivity in Windows 11 · Mobile Hotspot Not Working · Network Adapter Missing on Windows 11 · Network Adapter Not Found · Network Discovery Not Working on Windows 11 · Network Drive Not Connecting in Windows 11 · No Internet After Windows Update · No Internet Secured on Windows 11 · Packet Loss on Windows 11 · Remote Desktop Not Connecting Windows 11 · Router DHCP Not Assigning IP Address · Router Dropping Connection · Router Keeps Disconnecting · Slow Ethernet Connection on Windows 11 · Slow Internet Connection on Windows 11 · Slow Upload Speed on Windows 11 · Slow WiFi Speed in Windows 11 · VPN Keeps Disconnecting · VPN Slow Connection · VPN Slow Internet · VPN Slowing Internet Speed · Why Internet Drops When Gaming · Why WiFi Keeps Asking for Password on Windows 11 · WiFi 6 Not Working in Windows 11 · WiFi Authentication Error · WiFi Calling Not Working · WiFi Connected But No Internet · WiFi Disconnects When Laptop Sleeps · WiFi Dropping on Windows 11 · WiFi Keeps Asking for Password · WiFi Keeps Asking for Password on Windows 11 · WiFi Not Showing Networks on Windows 11 · WiFi Password Not Working in Windows 11 · WiFi Slow on One Device · Windows 11 Cannot Connect to WiFi · Windows 11 Firewall Blocking Programs · Windows 11 Network Adapter Keeps Disabling · Windows 11 Proxy Not Working · Windows 11 Stuck on Identifying Network · Windows 11 WiFi Not Connecting After Sleep
Software & App Errors
Adobe Acrobat Not Opening · Adobe Acrobat Not Responding · Adobe Reader Not Opening · Discord Audio Not Working · Discord Screen Share Not Working · Excel Crashes in Windows 11 · Excel Formulas Not Working · Excel Keeps Freezing · Excel Not Responding · Google Chrome Not Updating · Google Drive Not Syncing on Windows 11 · Google Meet Camera Not Working · How to Fix Office Activation Error · How to Fix Steam Not Launching Windows · Microsoft Store Not Working Windows 11 · Microsoft Teams Not Loading · Microsoft Teams Not Opening · Microsoft Teams Video Not Working · Microsoft Word Keeps Crashing · Microsoft Word Keeps Crashing · Netflix Not Working in Windows 11 · OneDrive Not Syncing · OneDrive Not Uploading Files · OneDrive Sign-In Error · Outlook Calendar Not Syncing · Outlook Email Signature Missing · Outlook Keeps Freezing · Outlook Not Receiving Emails · Outlook Not Responding · Outlook Not Syncing · Outlook Search Not Working · Outlook Signature Not Showing · Photoshop Not Opening in Windows 11 · PowerPoint Not Opening · Slack Not Showing Notifications · Slack Notifications Not Working · Snipping Tool Not Working in Windows 11 · Spotify Not Loading on Windows 11 · Spotify Not Working in Windows 11 · Teams Camera Not Working · Teams Microphone Not Working · Teams Not Opening · Teams Virtual Background Not Working · VLC Not Playing Video · WhatsApp Desktop Not Working · Why Teams Keeps Signing You Out · Windows Defender Not Updating · Word Not Opening in Windows 11 · Word Spell Check Not Working · Zoom Echo Feedback · Zoom Microphone Not Working · Zoom Not Launching on Windows 11 · Zoom Screen Share Not Working · Zoom Video Not Working
Windows Errors
Copy Paste Not Working on Windows 11 · File Explorer Keeps Crashing on Windows 11 · File Explorer Not Responding in Windows 11 · How to Fix Windows 11 Snap Layouts Not Working · How to Fix Windows 11 Virtual Desktop Not Working · Microphone Not Working on Windows 11 · Task Manager Not Opening · Taskbar Icons Missing on Windows 11 · Windows 11 Action Center Not Working · Windows 11 Apps Crashing · Windows 11 Apps Not Opening · Windows 11 Battery Draining Fast · Windows 11 Black Screen After Login · Windows 11 Brightness Not Working · Windows 11 CPU Overheating · Windows 11 CPU Running Hot · Windows 11 Camera Not Working · Windows 11 Clipboard History Not Working · Windows 11 Clipboard Not Working · Windows 11 Clock Wrong · Windows 11 Context Menu Slow · Windows 11 Date and Time Wrong · Windows 11 Display Scaling Blurry · Windows 11 File Explorer Slow · Windows 11 Freezes Randomly · Windows 11 Game Bar Not Opening · Windows 11 Game Bar Not Working · Windows 11 Hibernate Not Working · Windows 11 High Memory Usage · Windows 11 Keyboard Shortcuts Not Working · Windows 11 Lock Screen Not Working · Windows 11 Login Loop · Windows 11 Night Light Not Working · Windows 11 Not Shutting Down · Windows 11 Notifications Not Working · Windows 11 Notifications Not Working · Windows 11 PIN Not Working · Windows 11 Right Click Not Working · Windows 11 Screensaver Not Working · Windows 11 Search Bar Not Working · Windows 11 Shutdown Slow · Windows 11 Sleep Not Working · Windows 11 Slow Startup · Windows 11 Start Menu Not Working · Windows 11 Startup Slow · Windows 11 System Restore Not Working · Windows 11 Taskbar Not Hiding · Windows 11 Update Failing · Windows 11 Update Stuck · Windows 11 Update Stuck or Slow? The Step That Skips the Loop · Windows 11 Volume Mixer Not Working · Windows 11 Volume Not Working · Windows 11 Widgets Not Working · Windows Update Stuck on Windows 11







