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

Fix Microsoft Teams File Locked by Previous Session Error

You try to edit a file in Microsoft Teams and see a message that the file is locked by a previous...

Fix Windows Security Authentication Error 0x80070035

Fix Windows Search 502 Bad Gateway Network Config

You search for a file in Windows and get a "502 Bad Gateway" error. This usually means Windows Se...

UFW Allow Port Range Not Opening: Fixes and Checks

If you've added a UFW rule to allow a range of ports but connections are still being blocked, the...

Windows 11 Activation Module Not Found: Causes and Fixes

You try to open Activation settings in Windows 11 and see 'Windows activation module not found' o...

Fix Docker Volume Permission Denied for Nginx

You mount a local directory into an Nginx container, but the container logs show permission...