How to Repair Damaged Windows System Files
Sometimes it may happen that one of the most important Windows system files is corrupted. You may see on your PC or laptop messages about missing DLL files or there may be other indications about the problem. The tip below will help you in repairing the system with SFC (System File Checker).
This is one of the command-line system tools which come with all new versions of Windows. It will scan protected system files and replace corrupted versions with the copies from an installation disk, cache or folder.
Malware or virus infections are the main source of this problem so clean your system before trying repairs. Also, try the System Restore option if possible as it is easier to use.
Using SFC in Windows 7 or Vista
The process is usually much easier in the latest versions of Windows.
- Open a command prompt with administrator privileges.
- Type and enter “sfc /scannow” (type it without quotes but use the space).
Your system files will be scanned and repaired if needed. It may take 10 or 15 minutes, depending on the speed of your system.
If Windows 7 or Vista system won’t boot, there is another option to try. In this situation, System File Checker can be run offline with the help of Windows Recovery Environment (RE). Again, you need a setup disk. Here are the details of using RE:
System Recovery Options in Windows 7
To access System Recovery Options on a Windows 7 system, you have the following options:
- If the tools are installed on your PC, boot into Advanced Boot Options
- If you have the original installation CD/DVD, access the tools from the CD/DVD
Using Advanced Boot Options
To access System Recovery Options using Advanced Boot options, you need to have the tools installed on your hard disk. Follow these steps:
- Restart your computer
- Press F8 before the Windows 7 logo appears
- At the Advanced Boot Options menu, select the Repair your computer option
- Press Enter
- System Recovery Options should now be available
After running SFC it is suggested to go to Windows Update to ensure that your system has the latest file versions.
As a certified computer technician, I strongly suggest regular backups to deal with corrupt files. However, when helping other people (who didn’t regularly back up) System File Checker has its place and is part of the regular toolkit.
If you live in Surrey and your computer stuck you can try the steps above but if you cannot fix it, then find a certified computer technician near you. Same Day Geek is the best computer service in Surrey BC.