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KBDCLASS.SYS BSOD Error Solutions
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- Problem Description
- Wireless Microsoft keyboards cause BSOD when plugged in
- KBDCLASS.SYS is a keyboard driver handling all key combinations
- System file KBDCLASS.SYS crashes when its code changes
- Solutions
- Uninstall Webroot antivirus if it's causing the issue
- Update drivers via Device Manager or Windows Update
- Rollback HID Keyboard driver in Device Manager
- Uninstall and reinstall USB Controllers
- Perform System Restore to earlier working point
- Additional Information
- Solutions require Safe Mode or Advanced Startup options
- Webroot antivirus is known to cause the issue
- Custom uninstall tools recommended for antivirus removal
- System Restore can resolve most Windows BSOD errors