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

How to Fix Outlook Blank Screen on Startup

When you open Outlook and see only a blank screen—no folders, no email list, just gray or white—i...

Windows 11 Activation Error: Product Key Blocked – Fixes

You see “Product key blocked” during Windows 11 activation. This usually means the key is tied to...

Fix Windows Security Authentication Error 0x80070035

Cloudflare Error 521: Web Server Is Down Checklist

If you see Cloudflare error 521 (web server is down), it means Cloudflare cannot establish a TCP ...

How to Set Proxy in Command Prompt (Windows)

If you need to route traffic through a proxy server on Windows, you can set proxy settings direct...

Reduce OneDrive High Memory Usage: Configuration Settings

If OneDrive is using more memory than expected—say over 500 MB on a system with 8 GB RAM—it can s...