Memory integrity can’t be turned on due to ftdibus.sys error

There are some certain scenarios where the memory integrity may not work on your computer. One of these issues is the driver incompatibility such as ftdibus.sys, that can lead to this error on your device. As Memory Integrity of the system is the crucial part of the machine, you should not overlook this. These are the only solutions you will need to tackle this problem.

Fix 1 – Update the Bus drivers

The FTDI bus driver is a legtimate driver located in the System32 folder. But, the lack of proper updates can lead to this issue.

Step 1 – At first, right-click the Windows icon and further tap “Device Manager“.


device manager min 3


Step 2 – As the Device Manager opens up, expand the “Universal Serial Bus Controllers” tab.

Step 3 – Next, rigth-click the first entry in the list and tap “Update driver“.


update driver usb hub min


Step 4 – Later, choose the “Search automatically for drivers” option to let the computer search for the latest driver.


search autm for drivers min


Step 5 – Repeat the same steps on all the drivers listed there in the Universal Serial Bus Controllers to update them all.


update them all min


Once you have done this, make sure to restart your computer once.

Go ahead and try to re-enable the memory integrity from Windows Security page.


Fix 2 – Install all the Windows Updates

Windows updates all the bus drivers and chipsets through the Windows Update. So, make sure to install all of those.

Step 1 – To do this, open the Settings.

Step 2 – Then, go to the “Windows Update” on the left pane.

Step 3 – On the opposite side, tap “Check for updates” to perform a check for updates.


check for updates min


Wait for Windows to recognize the latest update package for the device. Usually, these updates are very small and won’t take much time.




Step 4 – Windows enlist the driver updates in the optional category. So, in the Windows Update page, tap “Advanced options“.


advanced options min


Step 5 – Now, open the “Optional updates” .


optional updates min 1


Step 6 – If you see any updates related to the BUS drivers/controllers or chipsets, check those one-by-one and use the “Download & install” to download and install the updates on your system.


download and install min 1


Finally, as all the updates are installed, a system restart is due.

Step 7 – So, come back to Windows Update page and tap “Restart now“.


restart now update new min 1


You won’t have the ftdibus.sys problem in the Windows update anymore.


Fix 3 – Uninstall the faulty bus driver

Uninstall the faulty bus driver from your system and restart your computer.

Way 1 Using the terminal

Step 1 – To do this, type “cmd” in the search box.

Step 2 – Next, right-tap the “Command Prompt” tab and tap “Run as administrator“.


run as admin cmd min


Step 3 – Paste these code and hit Enter to know the driver.

dism /online /get-drivers /format:table

Check the identity of the ftdibus.sys driver from the list and notice the oem drivers in the list.


dism table info min


Step 4 – Now, you have to uninstall that driver from your computer using the same oem number that you have noticed.

pnputil /delete-driver oemnumber /uninstall /force

[Note – Replace the “oemnumber” with the name that denotes the ftdibus.sys driver.

If the published name of the ftdibus.sys is “oem5.inf“, then the code should be –

pnputil /delete-driver oem5.inf /uninstall /force



delete the driver min


You will see this message in the terminal after the successful removal of the driver –

Driver package uninstalled.
Driver package deleted successfully.


Ater this, close the terminal. Restart the computer as a system restart is needed after the removal of a driver.


Way 2 – Using the FTDI uninstaller

You should use the FTDI uninstaller tool and uninstall the driver from your computer.

Step 1 – Go to the FTDI utilities page.

Step 2 – Go down to find the CDM Uninstaller tab. Tap “Download CDM Uninstaller (command line version+GUI version)” to download it.


cdm uninstaller min


Step 3 – After this, extract the compressed file in a location of your choice.


extract the pacakge min


Step 4 – Go to the folder where you have extracted the files.

Step 5 – Locate the “CDMUninstallerGUI_v1.5“. Right-click that and tap “Run as adminstrator” to run the tool with elevated rights.


cdm run as admin min


Step 6 – As the utility runs, it will automatically detect the Vendor ID and Product ID. Tap “Add” to add that.


add it min


Step 7 – Finally, tap “Remove Devices” to remove the device from your system.


remove devices


Restart your computer and you shall be good to go.


Fix 4 – Use the system repair tools

Use the system repair tools like SFC, DISM to fix the driver file corruption.

Step 1 – To do this, use the Windows+R buttons together.

Step 2 – Input “cmd” in there and press Ctrl, Shift and Enter three keys together.


cmd ctrl shift enter min


Step 3 – Use these codes on the terminal to run the file checking scans on your system.

DISM /Online /Cleanup-Image /CheckHealth
DISM /Online /Cleanup-Image /ScanHealth
DISM /Online /Cleanup-Image /RestoreHealth


dism min


This entire execution process will take a lot of time. So, leave the computer alone and let it complete the check, scan and restoration steps on your system.

You won’t see the ftdibus.sys error again.