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

Troubleshoot 502 Bad Gateway with Curl Commands

A 502 Bad Gateway error means your server (gateway) got an invalid response from an upstream serv...

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...

Windows Activation Error Troubleshooting Checklist: Step-by-Step

Common Activation Error Types

Windows activation errors usually appear as a watermark on ...

Fix Windows 10 Update Stuck at 100%

You've waited through a Windows 10 update, only to see it stuck at 100% for an hour (or more). Th...

Fix Ubuntu APT Lock Not Released After Update

After running an update or upgrade on Ubuntu, you may see an error like E: Could not get lo...