Fix “Clfs.sys” Error in Windows 10, Windows 8.1

By: Marian Cularea
4 minute read

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Getting the “clfs.sys” error message on a blue screen is a common Windows 10 or Windows 8.1 issue which most of the users are having trouble fixing. You are in luck because you will see below a quick tutorial about the steps you need to take in order to fix the “clfs.sys” error message in Windows 10 or Windows 8.1 operating systems.
clfs.sys error message in Windows 8.1 or Windows 10 Fix
You get this “clfs.sys” error message because either you have a malfunctioning hardware component and your Windows 10 or Windows 8.1 system gives you the described error but this message can also appear if you have a problem with one of your devices drivers. You can find out more about this issue by doing the tutorial in the order it is written below and save some debug time on the Windows 8.1 or Windows 10 device in the process.

How to solve the “clfs.sys” error message in Windows 10 or Windows 8.1

  1. Update clfs.sys related drivers
  2. Run a security scan
  3. Restore your system to a previous point
  4. Run an SFC scan
  5. Run a disk check
  6. Check if your RAM is corrupted

First option: Update clfs.sys related drivers

  1. Left click or tap on the download link below
  2. Download here DriverDoc application.
    Note: This application will update any clfs.sys related drivers on your Windows 10 or Windows 8.1 device.
    Note2: Even though it says that is compatible with Windows 7 this app will work fine on your Windows 10 or Windows 8.1 device.
  3. Install the DriverDoc application and run it on your system.
    Note: In case the DriverDoc application is not working on your Windows device you will have to check manually if you have any driver that might need an update after you upgraded to Windows 8.1 or Windows 10.

Second option: Run a security scan

  1. Open your antivirus and do a full system scan for any malware or viruses that might be in your system.
    Note: usually when you’re system registries are damaged in any way thus getting the clfs.sys error message it might be caused by a virus or a malware infection.
  2. After the scan is completed reboot the Windows 10 or Windows 8.1 device.
  3. Check and see if you still get the same clfs.sys error message.

Third option: Restore your system to a previous point

  1. Move the mouse cursor over to the upper right side of the screen.
  2. After the Charms bar has shown you will need to left click or tap on the “Search” feature.
  3. Write in the search box the following: “Control Panel”.
  4. Left click or tap on the “Control Panel” icon.
  5. In the “Control Panel” search box enter the following “Recovery”.

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    2. Click “Start Scan” to find Windows issues that could be causing PC problems.
    3. Click “Repair All” to fix all issues with Patended Technologies (requires upgrade).

  7. Left click or tap on the “Open system Recovery” feature.
  8. Follow the instructions on the screen to restore your Windows 8.1 or Windows 10 to an earlier point in time when your registry files were not damaged and you did not have this clfs.sys error message.

Fourth option: Run an SFC scan

  1. Move the mouse over to the upper right side of the screen.
  2. Left click or tap on the “Search” feature.
  3. In the search box, you will need to write the following: “Command Prompt”.
  4. After the search is finished you need to right-click on the “Command Prompt” and select the “Run as administrator” feature.
  5. If you are prompt by a user account control window you will need to left click on the “Yes” button to allow this application to open.
  6. In the command prompt window, you need to write the following: “sfc /scannow”.
  7. Press the “Enter” button on the keyboard.
  8. It will take a couple of minutes until the system file checker is finished.
  9. After it is finished you will need to reboot your Windows 8.1 or Windows 10.
  10. See if it fixed your clfs.sys error message after the “sfc” scan was performed.

Fifth option: Run a disk check

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  2. Click “Start Scan” to find Windows issues that could be causing PC problems.
  3. Click “Repair All” to fix all issues.

  1. Move the mouse cursor over to the upper right side of the screen.
  2. Left click on the “Search” feature you have available there.
  3. In the search box, you will need to write “Command Prompt”.
  4. Right-click on the “Command prompt” icon and select the “Run as administrator” feature.
  5. Left click or tap on the “Yes” button if a user account control window pops up.
  6. In the command prompt window write the following: “chkdsk /f” without the quotes.
  7. Press the “Enter” button on the keyboard.
    Note: This process will check your disk for any errors it may have on it and it will try to fix them.
  8. After the check process is completed you will need to close the command prompt window and reboot the Windows 8.1 or Windows 10 device.

Sixth option: Check if your RAM is corrupted

  1. Download Windows MemTest86 USB image
  2. Extract it from the ZIP file on your PC
  3. Insert an EMPTY USB stick into your computer
  4. In the extracted folder (MemTest86) run the imageUSB tool and choose your USB stick so it becomes bootable
  5. Restart your PC with the USB drive as main bootable device
  6. Follow the commands from the screen while MemTest86 will check for memory issues

You have above a couple of options that you can try in order to fix your clfs.sys error message in Windows 8.1 or Windows 10. Also, you can write us below in the comments section of the page any questions that you may have on this subject and we will help you further with this issue as soon as possible.

READ ALSO: Windows 10 Could Get Customizable Lock Screens Just Like Windows Phone 8.1

Editor’s Note: This post was originally published in November 2014 and has been since revamped and updated for freshness, accuracy, and comprehensiveness.

For various PC problems, we recommend this tool.

This software will repair common computer errors, protect you from file loss, malware, hardware failure and optimize your PC for maximum performance. Fix PC issues now in 3 easy steps:

  1. Download this PC Repair Tool rated "Excellent" on TrustPilot.com.
  2. Click “Start Scan” to find Windows issues that could be causing PC problems.
  3. Click “Repair All” to fix all issues with Patended Technologies (requires upgrade).

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