How does Win7 fix disk errors?

System automatically repairs the disk

After selecting the drive letter F in my computer, click the right mouse button and select Properties. In the pop-up drive properties window, select “Tools →Start Check &rdquo And select "Automatically fix file system errors" and "Scan and restore bad sectors", then click Start, the scan time will vary depending on disk capacity and scan options (after doing the above method) , a box will pop up, the point is, after the automatic shutdown, the boot is repaired, Win7 selects the scheduled disk check button).

Manual Disk Repair

If the hard disk is bad, it may cause the computer system file to be damaged or lost, and the computer will not start or crash. Hard disk bad sectors can be repaired using the NDD disk tool or Scandisk.

If the fault persists, please restore the system or reinstall (or not format the hard disk to re-partition reload, if you can't change the hard drive, or overhaul it).

Find a way to enter the system to repair the disk, enter, wait for a while to try, boot, press F8 to choose safe mode, PE, reinstall the system, to repair to help you.

If there is no illegal shutdown, there is no problem with the hard disk, boot or scan, you can use the following method to remove the system scan hard disk: Click “Start/Run”, enter “regedit” Enter to open the registration Table editor, select the "HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSessionManager" sub-key, then find the "BootExecute" key item in the right window and clear its value data, restart it (cancel the file before exporting to backup, so if you need Restore backup).

Under normal circumstances, Win7's stable and powerful self-test function will completely repair the disk. As long as you wait patiently and do nothing, the system will repair the disk completely. The above methods are based on the principle of defragmentation. Minimize the damage and don't worry about the loss of hard drive data.