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

How to Fix Nginx Redirect Loop with Cloudflare

You set up Cloudflare for your site, and now visitors see a redirect loop error. The page keeps r...

How to Fix Cloudflare Origin Certificate Invalid Error

If you see a Cloudflare origin certificate invalid error, your browser or server is rejecting the...

Git Merge Conflict Checklist Before Merging

You're about to merge a branch, but you've been burned by merge conflicts before. This ch...

Fix Windows Update Error 0x80070002 on Windows 10

When Windows Update fails with error 0x80070002, it usually means the system can't find the u...

Windows Security App Won't Open in Safe Mode: Fixes

If you’re in Safe Mode and the Windows Security app refuses to open—showing a blank window, crash...

Fix Windows Update Error 0x80070005 by Taking Ownership

What Causes Error 0x80070005?

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