Knowledge base for software setup, errors, and daily tool work.

How to Fix Windows Security Auto Start Disabled

If you notice that Windows Security (formerly Windows Defender) isn't starting automatically with...

Fix 'File Locked by Unknown Process' in Command Prompt

You try to delete, rename, or move a file, but Windows says it's locked by an unknown process. Th...

Fix Task Scheduler Sync Issues with Microsoft Account

Fix Windows Security Not Starting Due to Third-Party Antivirus

If Windows Security (formerly Windows Defender) refuses to start or shows a blank screen, a third...

BitLocker Recovery Key Not Accepted After BIOS Update

After a BIOS update, you might be prompted for your BitLocker recovery key, only to find that the...

Fix Windows Activation Error 0x80070005 Permission Denied

You see error 0x80070005 with "Permission denied" when trying to activate Windows. This usually m...