Type sfc /scannow and hit Enter. This scans and repairs system files. Restart: Once finished, restart your computer. Other High-Value Troubleshooting Tools
Right-click Start > Device Manager, then look for yellow triangles to identify broken or missing drivers. Windows 10 Troubleshooting
Type dism /online /cleanup-image /restorehealth and hit Enter. Wait for this to finish, as it fixes the underlying image files (requires internet) . Type sfc /scannow and hit Enter
(e.g., PC not booting, app crashes, blue screen, slow speed) let me know:
If Windows won't boot, turn the computer off and on 3 times while it's starting to trigger the Advanced Startup menu (Troubleshoot > Advanced Options > Startup Repair).
A solid, all-purpose piece of Windows 10 troubleshooting is running the combined with DISM commands. This fixes the majority of corruption-related issues, such as random freezes, app failures, or Windows acting sluggish, by replacing broken system files with healthy ones from Windows Update. The "Solid Piece" Fix: SFC & DISM
If the computer is unstable, hold Shift while clicking Restart > Troubleshoot > Advanced Options > Startup Settings > Restart > Press 4 for Safe Mode . To give you a more specific fix, let me know: