But, the Not a valid drive number error message can occur on your system, and in this article, we will explore some of the best ways to troubleshoot this error.
- A Windows error 3159: not a Valid Drive Number can occur because of corrupted or outdated drivers.
- To fix this error, start by updating your drivers.
- The chkdsk command might also fix this issue, so try it.
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Check if the drive letter is valid
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Make sure your disk isn’t assigned with an invalid drive letter.
Right-click the My Computer or This PC icon > select Disk Management.
Right-click on the disk > select Change Drive Letter and Paths.
Select the Change icon > select Remove.
Make sure that the disk is assigned with the correct drive letter.
Check the drive letter using Disk Management
- Right-click on the Start button and select Disk Management.
- Navigate to the Drive where the CD/DVD is inserted.
- Right-click on the drive and select Change Drive Letter and Paths.
- Check the assigned letter of the hard drive.
- If the drive letter is incorrect, click on Change while checking the box next to Replace the Dialog.
- Now, check the assigned letter and click on the OK button.
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Rename the drive letter
- First, users can try renaming the drive letter, which might help resolve the error. Right-click the Drive letter and open Properties.
- Then, select Change to open the window directly below.
- Press the Change button to open the window below. Then, select the Drive tab.
- Press the Change button to open the window below.
- Select the New button.
- Enter the drive letter in the text box, and press the OK button.
- After that, select OK again, and close the window to save the changes.
Perform a Clean Boot
- Press Windows Key + R to open Run.
- In Run, type msconfig and click OK.
- On the General tab, click the Selective startup button.
- Select the Load system services and Startup items and click Apply and then OK.
- Restart your computer.
Run SFC and DISM
- To run SFC and DISM, open the Run accessory, and input sfc/scannow in Run’s Open text box.
- Press the Enter key to open the System File Checker tool.
- SFC will scan for corrupted system files, and any it fixes will be listed on the Scan Results tab.
- Select the Repair Selected option.
- Restart Windows after SFC has fixed any corrupted system files.
- To run DISM, input DISM /Online /Cleanup-Image /RestoreHealth in Run’s Open text box.
- Click the OK button to open DISM.
- Select the Select Drive option and select your Windows partition.
- Click the Next button.
- Select the System Restore option.
- Click the Next button.
- Select the Yes option.
Perform a System Restore
- Press Windows Key + R to open Run, enter rstrui in the text field, and click OK.
- Now, click the Next button.
- Click the Show more restore points option.
- In the list there are check boxes next to system restore points. You need to check only the ones created before the error occurs.
- Click Next.
- Click the Finish button.
