The error message “The operating system couldn’t be loaded because a critical system driver is missing or contains errors” often appears when your computer cannot boot normally. One of the files that can cause this error is qevbda.sys. This file is located in % Windir% % System% drivers and it is related to QLogic FastLinQ Ethernet from Cavium. Inc / QLogic Corporation.
In this article, we will guide you on solutions to fix Windows 10 can not boot due to lack of system driver, code 0xc0000221. You can try whatever solution you find appropriate to solve the problem.
1. Check the peripherals for any problem
This error can appear when peripherals such as external keyboards, USB … have problems.
You can diagnose by disconnecting device one by one to find faulty device. Also, you should update the compatible drivers for the devices to ensure they work in a stable way.
- 5 basic ways to update, update drivers for the computer
2. Scan SFC
To fix this problem, you can also use the System File Checker (SFC) feature of Windows 10. When enabled, the SFC will perform a scan to see if there is a problem. If an error is detected, the SFC will automatically repair it.
How to activate SFC you can refer to the article below:
- Use the SFC scannow command to fix Windows 10 file system errors
3. Delete the faulty driver
To perform this method, you need to visit Advanced Options and select Command Prompt . In the Command Prompt window, enter the following command and press Enter
cd.. cd windowssystem32 del netqevbda.inf
You can also use the above command to delete the qevbd.inf file. Note that before executing commands in Command Prompt you should back up your Windows 10 system just in case.
4. Run Automatic Startup Repair
The next solution that you can use is to use the Windows 10 Automatic Startup Repair tool. This is the automatic error correction system that Microsoft integrates into Windows 10 and it can help you fix a lot of problems.
How to run Automatic Startup Repair you refer to in the article below:
- How to run Startup Repair in Windows 10
5. Restore the system with a backup file
If none of the above solutions helped you to solve the problem, you can try this last one. The condition of this solution is that you previously backed up your Windows 10 system. This solution also has a downside: you will lose files that you have not backed up.
How to restore the system with a backup file, you can refer here: How to back up and restore Windows 10 from System Image
I wish you success and invite you to refer to more great tips on makeover.