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

How to Fix a Chrome Extension That Keeps Crashing or Stopped Working

If a Chrome extension suddenly stops responding, crashes on click, or shows a "This extension may...

Fix DNS Client Service Not Running in Command Prompt

When you run commands like ipconfig /flushdns or ipconfig /registerdns ...

Fix Microsoft Store 404 Error by Clearing Cache

When you open Microsoft Store and see a 404 error, it usually means the app can't load its conten...

Fix Windows Search Access Denied for Administrator Account

Why You See 'Access Denied' as Administrator

You're logged in as an administrator, but Wi...

Jupyter Kernel Not Starting in VS Code: Quick Fixes

You open a Jupyter notebook in VS Code, try to run a cell, and the kernel either hangs on "Starti...

How to Fix Windows Update Not Working After Upgrade

After upgrading Windows, you may find that Windows Update stops working—errors like 0x80070002, 0...