How to Repair Computer Errors by Yourself
Troubleshooter of Error: C000021a Oxc0000135
Tertius Jun. 19th, 2015
Are you experiencing Error C000021a Oxc0000135? are not alone.
Item Info
Error Codes C000021a Oxc0000135
Recommended Download C000021a Oxc0000135 Error Fixer
File version 5.2
Size 4.5MB
Speed Up Your PC Free Performance Scan

C000021a Oxc0000135 Error? What is Wrong with My Computer?

C000021a Oxc0000135, will pop up when my computer is about to frozen up. Sometimes this error: 0x8004ff01 comes together with that error message. Is there any connection between them my computer has always been good. Can someone help me?

- Mimi Mundy

C000021a Oxc0000135 Error Again? What is Wrong with My Computer?

"C000021a Oxc0000135 Error" is displayed.

Can't chat onine since error 0x0000009B UDFS_FILE_SYSTEM and C000021a Oxc0000135 will pop up.

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How to Fix C000021a Oxc0000135 Error?


  • Go to the Start button.
  • In the Search box, type "cmd" (without quotes) and press Enter.
  • At the command prompt, type "chkdsk /r /f" (without quotes) and press Enter.
  • Reboot your computer.
NOTE: You might receive an error message that states:

"Access denied as you do not have significant privileges. You have to invoke this utility in elevated mode."

If you receive the above error message, it means you are not logged into you computer as an Administrator. If that's the case, follow these steps to run the command prompt in elevated mode:

  • Go to theStart button.
  • Go to "All Programs > Accessories" and right click on "Command Prompt".
  • Select "Run as Administrator".
  • In the Search box, type "cmd" (without quotes) and press Enter.
  • At the command prompt, type "chkdsk /r /f" (without quotes) and press Enter.
  • Reboot your computer.

Windows Trouble Shooter to Fix Error C000021a Oxc0000135

  • ress and hold the "Windows" button and the "W" button.
  • In the search dialog box write the following: "troubleshooting" without the quotes.
  • Left click or tap on the "Troubleshooting" feature after the search has finished.
  • In the upper left side of the window left click or tap on the "View All" option.
  • Now find and left click or tap on the "Windows Update troubleshooter" feature.
  • From here you only need to follow the instructions on the screen and finish the troubleshooting process.
  • After you are done with the troubleshooting process reboot your Windows 10 operating system.
  • Check again if you still get the error C000021a Oxc0000135.

Still can't Fix Error C000021a Oxc0000135?

1. Click the button to download Error Fixer . Install it on your computer.  Open it, and it will scan your computer. The errors will be shown in the list.

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2. After the scan is finished, you can see the errors and problems which need to be fixed.

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3. When the Fixing part is finished, your computer has been speeded up and the errors have been fixed

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Tagged: C000021a Oxc0000135, C000021a Oxc0000135 fixer

Comments (36)

What People Say: (About C000021a Oxc0000135)

Me gusta su sencillez y lo más importante que realmente funciona!

by Shaun Lindsey Jun.10th

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