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

How to Clear Windows Update Cache to Fix Update Errors

When Windows Update gets stuck at a certain percentage or throws an error code (like 0x80070002, ...

How to Fix Windows Search Authentication Failed Permission Denied

You click the Start menu or Search bar, type a query, and instead of results you see an error: "A...

Stop Windows Search Service to Free Up a Port

You might need to stop Windows Search if it's holding port 10243 or another port you need for dev...

Fix Windows Security Not Working in Windows 11

If Windows Security won't open, stays blank, or crashes on Windows 11, the problem is often a cor...

Fix Chrome Not Opening on Startup in Windows 11

If Chrome used to open automatically when you log into Windows 11 but now it doesn't, or if you'v...

How to Restore Chrome Profile After a Crash

Symptoms of a Corrupted Chrome Profile

After a browser crash, you might see errors like '...