CompTIA A+ 220-1102 Practice Question

Running sfc /scannow in an elevated Command Prompt is the correct way to initiate a System File Check (SFC) scan, which will scan all protected system files and replace corrupted files with cached copies from the Windows installation media. This can often resolve issues caused by corrupted system files.

chkdsk /f is used to check the disk for errors and fix them, but it does not specifically target system files. dism /online /cleanup-image /restorehealth is used to repair the Windows image, which can be helpful in some cases, but it's not the primary tool for replacing corrupted system files. sfc /verifyonly only scans for corrupted files but does not attempt to repair them, making it less effective in resolving the issue at hand.