A no-nonsense, step-by-step guide to diagnosing and repairing common Windows 10 and 11 problems: without spending a single dollar. You can fix most PC and computer problems for free using tools already built into Windows. Start with a proper restart, then run SFC and DISM for system file corruption, use Windows Troubleshooters for specific problems (network, audio, updates), reset the network stack for connectivity issues, clean startup programs for speed, and use Disk Cleanup for storage. These are the same commands a paid technician would run: you just need to know the right order. Signs You Need This Fix ● Your computer is running noticeably slower than it used to ● Programs freeze, crash, or refuse to open ● Windows Update keeps failing or getting stuck at a percentage ● You see error messages or blue screens you do not understand ● Your internet or WiFi connection is unreliable on this PC but works on other devices ● The PC takes forever to start up or shut down ● Disk usage is stuck at 100% in Task Manager even when idle ● You hear the fan running loud even with no apps open ● Windows features like Start Menu, Search, or Taskbar are broken Free Methods to Try First These use built-in Windows tools and cost nothing. 1 Step 1: Restart Your PC Properly Click Start > Power > Restart. A real restart clears memory leaks, releases file locks, and finishes pending updates. Sleep and wake are not the same: your PC needs a full restart cycle. This alone fixes about 30% of reported issues. Step 1: Restart Your PC Properly Click Start > Power > Restart. A real restart clears memory leaks, releases file locks, and finishes pending updates. Sleep and wake are not the same: your PC needs a full restart cycle. This alone fixes about 30% of reported issues. 2 Step 2: Run System File Checker (SFC) Open Command Prompt as Administrator and type "sfc /scannow". This scans every protected Windows system file and repairs any that are corrupted or missing. Takes 10-30 minutes. If it reports files it could not fix, proceed to Step 3. Step 2: Run System File Checker (SFC) Open Command Prompt as Administrator and type "sfc /scannow". This scans every protected Windows system file and repairs any that are corrupted or missing. Takes 10-30 minutes. If it reports files it could not fix, proceed to Step 3. 3 Step 3: Run DISM RestoreHealth Still in admin Command Prompt, run "DISM /Online /Cleanup-Image /RestoreHealth". This repairs the Windows component store: the source that SFC uses for replacement files. Requires internet. Takes 10-20 minutes. Step 3: Run DISM RestoreHealth Still in admin Command Prompt, run "DISM /Online /Cleanup-Image /RestoreHealth". This repairs the Windows component store: the source that SFC uses for replacement files. Requires internet. Takes 10-20 minutes. 4 Step 4: Check for Malware Open Windows Security > Virus & threat protection > Full scan. Malware can cause slowdowns, crashes, and network problems. Windows Defender is free, built-in, and catches most threats. If it finds something, remove it and re-run SFC to fix any damage. Step 4: Check for Malware Open Windows Security > Virus & threat protection > Full scan. Malware can cause slowdowns, crashes, and network problems. Windows Defender is free, built-in, and catches most threats. If it finds something, remove it and re-run SFC to fix any damage. 5 Step 5: Clean Startup Programs Press Ctrl+Shift+Esc to open Task Manager > Startup tab. Disable any program with High startup impact that you do not need immediately when your PC boots. This directly reduces boot time and frees memory. Step 5: Clean Startup Programs

Press Ctrl+Shift+Esc to open Task Manager > Startup tab. Disable any program with High startup impact that you do not need immediately when your PC boots. This directly reduces boot time and frees memory. 6 Step 6: Free Up Disk Space Run Disk Cleanup: type "cleanmgr" in Start, select your C: drive, check all boxes including "Clean up system files". Or go to Settings > System > Storage > Temporary files. Removing update cache, thumbnails, and temp files can reclaim gigabytes. Step 6: Free Up Disk Space Run Disk Cleanup: type "cleanmgr" in Start, select your C: drive, check all boxes including "Clean up system files". Or go to Settings > System > Storage > Temporary files. Removing update cache, thumbnails, and temp files can reclaim gigabytes. 7 Step 7: Reset Network Stack (If Connectivity Issues) Open admin Command Prompt and run: "netsh winsock reset" then "netsh int ip reset" then "ipconfig /flushdns". Restart your PC. This repairs corrupted network components that cause WiFi drops, DNS failures, and limited connectivity. Step 7: Reset Network Stack (If Connectivity Issues) Open admin Command Prompt and run: "netsh winsock reset" then "netsh int ip reset" then "ipconfig /flushdns". Restart your PC. This repairs corrupted network components that cause WiFi drops, DNS failures, and limited connectivity. 8 Step 8: Run Windows Troubleshooters Go to Settings > System > Troubleshoot > Other troubleshooters. Run the troubleshooter matching your problem: Windows Update, Network, Audio, Printer, and more. These automate common fix sequences for specific issue types. Step 8: Run Windows Troubleshooters Go to Settings > System > Troubleshoot > Other troubleshooters. Run the troubleshooter matching your problem: Windows Update, Network, Audio, Printer, and more. These automate common fix sequences for specific issue types. When Manual Fixes Are Not Enough These steps handle the most common issues individually. But if your computer has multiple overlapping causes: corrupted services, a broken network stack, driver conflicts, and update failures all feeding each other: manually running each fix in the right order takes 2-4 hours of focused troubleshooting. An automated toolkit runs all of these repairs and more in the correct diagnostic sequence in about 15 minutes. Fix It Automatically with RescuePC Toolkit Frequently Asked Questions Can I really fix my PC for free? Yes. Windows includes powerful repair tools: SFC, DISM, Troubleshooters, Disk Cleanup, chkdsk, netsh, and Reset This PC: that handle most software issues. These are the same tools professional technicians use. The only cost is your time learning which to run and in what order. Should I pay someone to fix my computer? For software issues (slowness, crashes, update errors, network problems): usually not. The fixes are well-documented and use free built-in tools. For hardware failures (dead hard drive, bad RAM, cracked screen, motherboard issues), professional help is warranted because those require physical parts replacement. How long does it take to fix a PC yourself? A single issue (like a failed Windows Update) takes 15-30 minutes. Multiple overlapping problems can take 2-4 hours when running each repair manually. Automated repair tools compress that to 15-30 minutes by chaining all repairs in sequence. Will fixing my PC delete my files? Standard repair tools (SFC, DISM, network reset, Disk Cleanup of temp files) do not touch personal files, photos, documents, or installed programs. The only option that removes files is "Reset This PC > Remove everything", which you would have to explicitly choose. How do I know if my problem is hardware or software? If the problem started after an update, software install, or settings change: it is almost certainly software. If it started after a physical event (drop, power surge, liquid spill) or comes with unusual noises (clicking, grinding, beeping), it is likely hardware. Software problems are fixable for free. Hardware problems need physical repair. Is it worth fixing an old PC or should I buy a new one? If the PC has an SSD and at least 8GB of RAM, fixing it is almost always worth it: software issues are free to fix and the hardware is still capable. If it has a mechanical hard drive and 4GB of RAM, a $50 SSD upgrade plus free software repair can make it feel new. Ready to Fix Your PC? 115 repair tools. No installation. No credit card. 20 free repairs forever: or try all 115 for 30 days.