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

How to Reduce Windows Security Memory Usage

Windows Security (formerly Windows Defender) can sometimes use more memory than expected, especia...

OBS Virtual Camera Not Showing in Google Meet: Fixes

You've set up OBS Studio, added your sources, and started the virtual camera—but when you open Go...

Remove Windows Activation Watermark Without a Product Key

If you see a persistent “Activate Windows” watermark in the lower-right corner of your screen, yo...

How to Clear SSH Known Hosts and Fix Host Key Verification Failed

How to Fix Windows Security 502 Bad Gateway Error

When you open Windows Security and see a “502 Bad Gateway” error, it means the app can’t connect ...

BitLocker 404 Not Found: Troubleshooting Steps That Work

When you see a '404 not found' error related to BitLocker, it usually means Windows cannot locate...