What is CHKDSK?
CHKDSK is a utility that allows you to scan your hard drive for errors and bad sectors. It is similar to scandisk in previous versions of Windows.
Why should I run it?
CHKDSK should be run regularly to check for errors, before defragmenting a hard drive, or to help diagnose computer problems.
How can I run it?
You can run CHKDSK through My Computer. You should close all other windows before starting.
1. Open My Computer.
2. Right-click the hard drive you would like to scan and click Properties.
3. Navigate to the Tools tab.
4. Click the Check Now button under Error-checking.
5. Check the first box and the second box if you or someone else suspect bad sectors. Scanning for bad sectors will take a much longer time. Click Start.
6. You should see a dialogue box like this:
7. Click Yes and restart your computer when you are ready.