What is the SFC? How does the system file checker work?

Question:

Once I found a command to use in the RUN dialog that automatically reloaded all the critical system files from my Windows XP CD on the internet after I had had a virus attack.

Now I want to reload the files in safe mode on a damaged system but cannot remember the command. I have searched the internet high and low and cannot find refrence to it anywhere.

Do you happen to know this command?

Answer:

The command to reload critical system files is the “SFC”, or “System File Checker”. It can be used in your situation above, or in any situation where critical, built-in Microsoft system files have been removed or corrupted. Here’s Microsoft’s detail on the SFC command.

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