If your PC is acting glitchy, freezing, or showing blue screens, you don’t need to be a tech expert to fix it. Windows has two built-in “doctors” called DISM and SFC. Think of them as a team: DISM fixes the big engine, and SFC fixes the smaller parts.
Step 1: The DISM Repair (The “Big Fix”)
We run DISM first to make sure the “master copy” of your Windows files is perfect. Open Command Prompt as Administrator and use these in order:
The Quick Check (To see if there is a problem):
DISM /Online /Cleanup-Image /CheckHealth
The Deep Scan (To find hidden errors):
DISM /Online /Cleanup-Image /ScanHealth
The Repair (Run this if the scan finds errors—it downloads fresh files from Microsoft):
DISM /Online /Cleanup-Image /RestoreHealth
Step 2: The SFC Scan (The “Fine-Tuning”)
Now that the master files are fixed, we run the System File Checker. This replaces any broken files on your actual desktop and system.
The Final Scan:
sfc /scannow
Which one do I use and when?
| If your PC is… | Use this command! |
| Just a little glitchy | Start with sfc /scannow |
| Showing major errors | Run the DISM commands first |
| Failing to fix itself | Run RestoreHealth, then SFC |
Pro Tip: Always restart your computer after these finish to let the changes take effect! It’s like giving your PC a quick nap after its check-up.