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

Fix 'Port Already Allocated' Error in Windows Defender

You open Windows Defender Security Center or try to run a scan, and you see an error saying a por...

Fix Windows Update Access Denied Due to Permission Settings

You try to run Windows Update, but get an 'Access Denied' error. This usually means the update pr...

Fix Chrome ERR_TUNNEL_CONNECTION_FAILED on Windows 10

If you see ERR_TUNNEL_CONNECTION_FAILED in Chrome while browsing on Windows 10, ...

How to Fix Chrome Proxy Settings Not Working with Profile

You set a proxy in Chrome's settings, but it doesn't seem to take effect when you browse with you...

Fix BitLocker 'Cannot Access Drive Permission Denied' Error

Understanding the Error

You see 'Cannot access drive. Permission denied' when trying to o...

Fix Chrome Resolution Too Small on Ubuntu

If Chrome appears unusually small on Ubuntu—tiny text, cramped tabs, or icons that are hard to cl...