sfc/scanboot the above is only if you want it to scan every time the computer reboots. if you want it to only scan the next time you boot the command is sfc/scanonce
sfc/scanonce
To use System File Checker, you can type sfc.exe or sfc in a command prompt window or in the run dialog box. To scan the system at the next reboot, you would use the /scanonce switch (sfc/scanonce).
sfc/scanboot
A computer technician should use the SFC /scan now command on a PC to restore protected system files with known good versions. This command scans system files, and will replace corrupted files.
because it needs to reboot
There are 2 ways: System Restore & System Recovery. Maybe your definition of a factory reboot is when you first purchased the computer, if this is the case, a System Recovery is a factory reboot because it comes with all the original software. Any added software and files WILL be erased.
A computer technician should use the SFC /scan now command on a PC to restore protected system files with known good versions. This command scans system files, and will replace corrupted files.
No, rebooting does not delete your files.
Because all files contained in it are generated by the kernel at mount time. It contains no permanent files; all changes are lost on system reboot.
/scanonce
"SFC" is used to scan and repair all protected system files."SFC /SCANNOW" scans files straight away."SFC /SCANBOOT" scans files every time computer boots."SFC /REVERT" returns SFC to its default settings."SFC /?" will give you further help when using the command.
To scan all system files in Windows, you can use the System File Checker (SFC) tool. At the command prompt, enter the command sfc /scannow and press Enter. This command will check for and repair corrupted system files. Make sure to run the command prompt as an administrator for it to work properly.