If SFC fails, DISM can repair the underlying Windows image by downloading healthy files from Microsoft's servers.

When your Windows 10 PC starts crashing, freezing, or showing the "Blue Screen of Death" (BSOD), you don't necessarily need a professional technician. Many of these issues are caused by corrupted system files that can be fixed using a "Windows 10 repair kit"—a combination of built-in Microsoft utilities and trusted third-party software. 1. The Official Microsoft "Repair Kit" (Built-in)

Open the Command Prompt as Administrator , type sfc /scannow , and press Enter.

This tool scans all protected system files and replaces corrupted ones with a cached copy.

For PCs that won't boot, this tool can fix issues like missing boot files. Access it by holding Shift while clicking Restart , then navigating to Troubleshoot > Advanced options > Startup Repair . 2. Best Third-Party Windows 10 Repair Kits to Download