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

Enable Windows Defender via Group Policy: Step-by-Step Guide

If Windows Defender is disabled on your system—perhaps after installing third-party antivirus or ...

Fix Microsoft Teams Access Denied on File Upload

You try to upload a file to a Teams channel or chat and get an 'Access Denied' error. The file se...

Fix Microsoft Teams 502 Bad Gateway After Update

If you see a 502 Bad Gateway error in Microsoft Teams right after an update, you're not alone. Th...

Reset Windows Activation Timer Using slmgr Commands

If you're seeing a Windows activation warning and need to reset the activation timer, the built-i...

Fix Remote Desktop Backup Restore Missing Files Error

You run a remote desktop backup restore and some files don't reappear. This is a common frustrati...

Fix Windows Security Authentication Error 0x80070035