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

How to Clear Windows Activation Cache Manually

If you see activation errors like “Windows is not activated” or “We can’t activate Windows on thi...

Fix Microsoft Teams Modern Authentication Failure

When Microsoft Teams shows 'We couldn't sign you in' or 'unable to authenticate with modern authe...

Fix Windows Search Error 0x80070005 on Ubuntu Dual Boot

If you see error code 0x80070005 when using Windows Search on a dual-boot system with Ubuntu, it ...

Fix Microsoft Teams Version Mismatch Update Required Error

Understanding the Error

When you see 'version mismatch update required' in Microsoft Team...

Fix Windows Update 502 Bad Gateway Due to Firewall Settings

When Windows Update fails with a 502 Bad Gateway error, it often points to a network issue—common...

Fix Microsoft Store DNS Error on Wired Connection

If you see a DNS error in Microsoft Store while on a wired connection, the issue is usually with ...