How do I check disk on Windows 11?

You can check your disk for errors on Windows 11 using the built-in Error Checking tool, or via the command line. Here's how to do both:

Method 1: Using the Error Checking Tool (GUI)

This is the easiest method for most users.

Open File Explorer: Click the file folder icon on the Taskbar.
Locate the Drive: In File Explorer, find the drive you want to check (e.g., Local Disk (C:)).
Open Properties: Right-click on the drive and select "Properties."
Navigate to the Tools Tab: In the Properties window, click on the "Tools" tab.
Check for Errors: In the "Error checking" section, click the "Check" button.
- Windows will either:
  - Tell you that it wasn't necessary to scan the drive
  - Suggest that you scan the drive to check for file system errors.
Scan Drive: If prompted, click "Scan drive."
Review Results: Windows will scan the drive for errors. If errors are found, you may be prompted to restart your computer to fix them. Follow the on-screen instructions.

This method provides more control and options.

Open Command Prompt as Administrator: Search for "cmd" in the Windows search bar, right-click on "Command Prompt," and select "Run as administrator." You must have administrator privileges to run CHKDSK with fix options.
Run CHKDSK: Type the following command and press Enter:
```
chkdsk C: /f /r /x
```
- C:: Replace this with the drive letter you want to check (e.g., D:, E:).
- /f: Fixes errors on the disk. The disk must be locked. If C: is being checked, it will ask to run on the next restart.
- /r: Locates bad sectors and recovers readable information. Implies /f.
- /x: Forces the volume to dismount first (if necessary). All opened handles to the drive are invalidated. Implies /f.
Schedule on Restart (if needed): If the drive you're checking is in use (usually the C: drive), you'll be asked if you want to schedule the check to run the next time you restart your computer. Type Y for "Yes" and press Enter.
Restart Your Computer: If you scheduled a check on restart, restart your computer to allow CHKDSK to run. The check will run before Windows loads.

Back Up Your Data: It's always a good idea to back up important data before running CHKDSK, as there's a small risk of data loss if errors are severe.
Running Time: CHKDSK can take a long time to run, especially on large drives or drives with many errors. Be patient and let it complete.
Solid State Drives (SSDs): While CHKDSK can be used on SSDs, the benefits are less significant compared to traditional hard drives. Avoid using the /r parameter on SSDs unless absolutely necessary, as it can shorten the lifespan of the drive.
Alternative Command: chkdsk C: (without parameters) will run in read-only mode, and display the drive's status, but not perform any repairs.