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

How to Refresh an OAuth Token in Command Prompt

If you're working with APIs that use OAuth 2.0, you've likely encountered an expired access token...

Fix Microsoft Teams Version Mismatch Update Required Error

Understanding the Error

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

Fix Windows Search DNS Error 0x800704cf

When Windows Search fails with error code 0x800704cf, it usually points to a network or DNS issue...

Fixing SSH Connection Refused for Linux Server via PuTTY

When you try to connect to a Linux server with PuTTY and get "connection refused," it usually mea...

Fix 'Permission Denied' When Updating Microsoft Store Apps

You try to update an app from the Microsoft Store, but get a 'permission denied' error. The updat...

How to Restore Windows Search Settings from Backup

If Windows Search stops working correctly—missing files, slow indexing, or wrong results—restorin...