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

Fix Windows Defender Error 0x80073b01

If you see error code 0x80073b01 when opening Windows Defender or trying to run a scan, it usuall...

Fix Chrome ERR_TUNNEL_CONNECTION_FAILED When Using VPN

Fix Task Scheduler Access Denied Due to User Account Control

You set up a task in Windows Task Scheduler, but when it runs, you get an 'access denied' error. ...

Fix Microsoft Store Error 0x80072f8f (Network Issue)

When you open Microsoft Store and see error 0x80072f8f, the store won't load or download apps. Th...

Fix Windows Activation Failed to Start Setup Configuration Error

You might see this error when trying to activate Windows after a hardware change, a major update,...

Fix Windows Defender Service Authentication Failed Error

You might see the error 'Windows Defender service authentication failed' when trying to open Wind...