How to Fix a Service Installation Section in This INF Is Invalid - MiniTool

When installing or updating the driver on Windows 11/10 system, you may experience the "Invalid service installation part in this INF" error. This article provides several solutions.

This error may also occur when connecting an Android phone to a computer, resulting in inability to access the phone. Here are some fixes:

Method 1: Update the driver

1. Enter "Device Manager" in the search bar to open Device Manager.
2. Double-click the device category, select the device that needs to be updated to the driver, and right-click "Update Driver".
3. Select "Automatically search for drivers" and Windows will automatically search and install the latest drivers.

Method 2: Reinstall the driver

1. Open Device Manager and find "Show Adapter".
2. Right-click the display adapter driver and select "Uninstall Device".
3. After the uninstallation is complete, click the "Operation" tab and select "Scan to detect hardware changes".
4. Download the latest drivers from the manufacturer's website.

Method 3: Manually install the missing driver file

This error may occur if the built-in USB driver files mdmcpq.inf and usbser.sys are missing or corrupted.

1. On a computer without this problem, press Win E to open File Explorer.
2. Click "View" and check "Show hidden items".
3. Enter the path:此电脑> 本地磁盘(C:) > Windows > INF and find the mdmcpq file.
4. Copy the file to an external storage device.
5. Enter the path: C:\\Windows\\System32\\drivers , find the usbser.sys file, and copy it to the external storage device.
6. Connect the external storage device to the computer where the problem occurs, copy mdmcpq.inf to C:\\Windows\\INF and usbser.sys to C:\\Windows\\System32\\drivers .

Method 4: Run SFC scan

System File Checker (SFC) can repair corrupt system files.

1. Open a command prompt (administrator permissions).
2. Enter sfc /scannow and press Enter.
3. Check if the error has been fixed.

Summarize

The above are several ways to fix the "The service installation part in this INF is invalid" error on Windows 11/10 system. Please try it one by one. Users who need free backup software can consider using MiniTool ShadowMaker, which supports backup of Windows 11/10/8/7 system files, folders and systems.

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