
				This article is a stub. You can help by expanding and clarifying it. Notice added on 2007-07-30.

The NT FileSystem (default for most Windows operating system versions) has features such as journaling that make it somewhat resistant to filesystem errors. However these may occour. Errors can (most times) be repaired by using system-provided tools, unless of course if they prevent you from booting the system.

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[edit] Steps

Attempt to boot your computer in order to run the disk repair utility chkdsk. This can be done by one of the following ways:
- Safe mode:
  - To boot your computer in safe mode, continuously press F8 key while it's starting. A menu will appear where you can choose booting in "safe mode".
- System installation CD-ROM or DVD.
  - Insert your system install medium into the computer. When it starts it should detect that an installation has already been made and let you start the recovery console (by pressing the 'R' key). You will have to follow the onscreen instructions until you see the repair console.
- Placing the disk on a different computer.
  - Remove the hard disk drive from your computer and place it on another computer. You'll be able to access your disk from the other computer's host system.
Run 'chkdsk' util.
- If you have a graphical interface, go to "My Computer", select the appropriate disk, click with the right mouse button and select Properties. Head for the "Tools" tab. Select "Check this drive for errors".
- If you have just a text console, write "chkdsk c:". "c:" should be replaced with the appropriate drive letter for the partition you are trying to check.

[edit] Warnings

Filesystem repairs are neither always possible nor fully reliable. Although you may lose data in the repair process, that is most unlikely unless you couldn't access that data already (due to the filesystem error).