What Is Ftdibus.sys? How to Fix the Ftdibus.sys Issue on Win11? - MiniTool

Solve the issue of "Memory integrity cannot be enabled due to ftdibus.sys" in Windows 11

Memory integrity of Windows 11 is an important security feature, but users often find it disabled due to problematic drivers, including ftdibus.sys. This article will answer what ftdibus.sys is and how to solve this problem.

What is ftdibus.sys?

The ftdibus.sys file is part of the FTDIBUS USB driver or FTDBUS driver and is usually installed by the motherboard chip driver. It is usually pre-installed by computer manufacturers to make motherboard chips such as processor boards or USB adapter boards work properly.

How to fix ftdibus.sys issue?

Many users reported having problems enabling memory integrity in Windows 11 and receiving an error message "Due to ftdibus.sys cannot enable memory integrity due to ftdibus.sys". Here are some solutions:

Method 1: Update Windows

Updating Windows 11 to the latest version may help resolve this error. Go to Settings > Updates and Security > Click Check for Updates to see if there are any updates available. If so, please download and install.

Method 2: Update the driver

Make sure to use the latest version of the graphics driver. Incompatible, damaged, lost or outdated drivers can all cause this problem. Driver updates are required:

1. Open the Run dialog box, enter devmgmt.msc , and press Enter to open Device Manager .
2. Locate the device that uses the FTDIBUS driver, right-click and select Update Driver .
3. Select Automatically search driver in the pop-up window and follow the instructions to complete the operation.

Method 3: Reinstall the driver

If the driver has expired after updating to Windows 11, you need to install an update that is compatible with the new system. The graphics driver needs to be uninstalled and reinstalled:

1. Open Device Manager and navigate to Display Adapter .
2. Right-click the device using the FTDIBUS driver and select Uninstall Device .
3. Wait for the uninstallation to complete.
4. Click the Actions tab and select Scan to detect hardware changes .

You can then download the latest drivers from the manufacturer's website.

Method 4: Uninstall ftdibus.sys

You can uninstall ftdibus.sys using the command prompt:

1. Type a command prompt in the search box and select Run as administrator .
2. Enter the following commands and press Enter after each command:

• dism /online /get-drivers /format:table
• pnputil /delete-driver oem5.inf /uninstall /force (Note: oem5.inf may need to be modified to your inf file name according to the actual situation)

Method 5: Run SFC and DISM

Running SFC (System File Checker) and DISM (Deployment Image Services and Management) can repair corrupt system files:

1. Run command prompt as administrator. Enter sfc /scannow and press Enter .
2. Once finished, restart the system. If the problem persists, run the command prompt as administrator again.
3. Then enter the following command and press Enter after each command:

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

Summarize

This article introduces ftdibus.sys and its repair method. You can try the above solution to solve this problem. If you have other solutions, please share them in the comment section.

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