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

Fix Windows Update Failed to Start After Reboot

You’ve just restarted your PC after installing updates, but Windows Update won’t start. The updat...

Fix Windows Activation Error 0x80070005: File Locked

When activating Windows, you might see error 0x80070005 with a message that a file is locked. Thi...

Fix Windows Activation Auto-Start Missing from Services

You open Services.msc to check the Windows Activation service and find its startup type set to Ma...

Fix Windows Search Not Working After Update

After a Windows update, you might click the Start menu or press the Windows key and type, only to...

BitLocker Recovery Key Not Accepted: Fix Authentication Failed Error

Fix Windows Defender High Memory Usage

If you notice Windows Defender (Microsoft Defender Antivirus) consuming a lot of memory—sometimes...