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

Fix BitLocker Blank Screen After Sleep Mode on Windows

If you enable BitLocker drive encryption and your computer shows a blank screen after waking from...

How to Fix Windows Security Authentication Failed Error

When you see the error 'Windows Security authentication failed' while trying to access a network ...

Fix Jupyter Notebook Token Not Working on Ubuntu

You launch Jupyter Notebook on Ubuntu, but when you open the URL in your browser, the token promp...

Fix Cloudflare DNS Not Working on Router Setup

If you've set Cloudflare DNS (1.1.1.1, 1.0.0.1) on your router but devices still can't resolve do...

Fixing Composer Memory Limit Errors with Large Dependencies

You run composer install or composer update and see something like:

Fix Outlook Email Sync Failed on Ubuntu

Outlook email sync fails on Ubuntu: what to check

If Outlook (via web browser, Evolution,...