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

Fixing Certbot Certificate Renewal Configuration Issues

You set up Certbot to auto-renew your Let's Encrypt certificates, but renewal fails silently or w...

Fix Microsoft Store Authentication Failed Error

When you see an authentication failed error in the Microsoft Store, it usually means the store ca...

Fix Windows Activation Blocked by Proxy Server

If Windows activation fails with an error like “We can’t activate Windows on this device because ...

Stop BitLocker Asking for Password at Boot

If your Windows PC prompts you for a BitLocker password every time you boot up, you're likely usi...

Fix Windows Security Authentication Error 0x80070035

Fix OneDrive Sync Blocked by Network Firewall

If OneDrive stops syncing and you see errors like "Sync is blocked" or files stay stuck with a sp...