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

Fix Microphone Permission Denied in Microsoft Teams

When Microsoft Teams shows a 'microphone permission denied' error, you can't hear yourself in cal...

Fix Outlook Email Sync Failed on Ubuntu

Outlook email sync fails on Ubuntu: what to check

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

How to Transfer Windows 10 Digital License to a New PC

If you upgraded to Windows 10 for free or bought a retail license, you can move that license to a...

Fix Windows Update Authentication Failed in Enterprise Setup

When Windows Update fails with an authentication error in an enterprise setup, it often means the...

Fix Windows Update Error 0x80070643 in Windows 11

You're trying to install a Windows 11 update, but it fails with error 0x80070643. This usually me...

How to Fix Remote Desktop Protocol Version Mismatch

You try to connect to a remote PC and get an error like “This computer can’t connect to the remot...