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

How to Fix Chrome Profile 502 Bad Gateway Error

If you see a "502 Bad Gateway" error in Chrome, especially after switching profiles or updating t...

Fix Windows Activation Error 0x80070002 (Dependency Conflict)

You try to activate Windows and get error 0x80070002. The message often says something like “depe...

Fix PowerShell Authentication Failed Credentials Error

Fix Windows Terminal Error 0x80070002 at Startup

If Windows Terminal fails to start and shows error code 0x80070002, it usually means the system c...

How to Start the Windows Update Service When It Stops

If Windows Update isn't working, the first thing to check is whether the Windows Update service i...

PowerShell Script Shows Blank Window: Fixes That Work

You run a PowerShell script, but instead of output you get a blank window that might close immedi...