HELP.. my computer DOES NOT stop doing disk checking

[Guest]

I chose to scan my Drive C and G for bad sector then it was doing it in the
start up (blue screen). After it does the scanning G and C, it restarted then
started scanning again.
My keyboard doesn't work, but I can access bios with keyboard before it hits
the blue screen for scanning.
Why is it doing that? Why is my keyboard disabled when it's in that screen?
how can I stop the scanning if it just keep doing it over and over again?

Thank you

 

[Mark L. Ferguson]

The registry entry at: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\BootExecute may have an entry for
'autocheck' which can be removed.