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

Fix Windows Update Error 0x80070005 by Taking Ownership

What Causes Error 0x80070005?

This error usually means Windows Update doesn't have pe...

Fix Firefox Secure Connection Failed After Update

After a Firefox update, you might see a "Secure Connection Failed" error when visiting we...

Chrome Black Screen Fix When Hardware Acceleration Is On

If Chrome shows a black screen, flickers, or freezes after you enable hardware acceleration, you&...

Fix Git SSL Certificate Problem on Corporate Networks

If you see git SSL certificate problem: unable to get local issuer certificate while...

Fix Cloudflare Origin Certificate with Let's Encrypt

If your origin server is rejecting the Cloudflare origin certificate—perhaps because of a SAN mis...

How to Uninstall a Windows Update in Safe Mode After a Blue Screen

If you're seeing a blue screen after installing a Windows update, the update itself may be th...