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As with all previous versions of Windows operating systems, Windows 7 has a disk checking utility. In Windows 7 it is called Check Disk, or CHKDSK. It is similar to ‘scandisk’ used in previous versions. This is an article which shows you how to run CHKDSK in Windows 7.
This tool can scan one or all of your hard disk drives, searching for any disk errors, corrupted files and folders, and lost sectors.
There are two different ways you can start CHKDSK; using the tool within Windows 7 and from the command line. The easiest of these two methods in using the tool from within the Windows 7 environment.
1. Open Computer, by clicking on it from your Start menu, on the right-hand side of the menu
2. Once Windows Explorer is open to Computer, right-click the hard disk drive you wish to scan, and click on Properties
3. Click on the Tools tab from selections on the top, and then click the Check Now button in the Error-checking section
4. You can select one of three different options in the Check Disk dialog box. You can choose to just scan the disk for errors by NOT selecting any options. If you would like to have Windows automatically fix corruptions and errors, enable ‘Automatically fix file system errors’ and click on the Start button.
You also have the option to scan and recover bad sectors. This option is not always necessary. Personally, I set CHKDSK to auto fix errors without enabling the scan and recover bad sectors option first. If errors still occur, then I come back and enable this.
5. If you select the option to auto-fix, you will see another dialog box appearing asking if you would like to schedule the scan. To do so, simply click on the Schedule disk check button.
After doing so, you will need to restart your computer to have it run. It will appear during the reboot, just after seeing the Windows starting logo, prior to seeing the Log on screen.
The command line alternative would allow you to run the CHKDSK option in a CMD (don’t forget to run CMD as administrator). Below are optional triggers to use. If you intend to use this method from a Safe Mode boot, I would recommend printing these out prior to rebooting.
“CHKDSK x: /F /R” would perform a full scan (including bad sectors) and attempt to fix them.