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

SSH Permission Denied (Publickey) on EC2: Setup Fixes

If you're seeing "Permission denied (publickey)" when trying to SSH into an AWS EC2 instance, the...

Task Scheduler Setup Checklist for System Administrators

When a scheduled task fails to run or runs at the wrong time, it's often due to missing configura...

Fix Svchost.exe High CPU Usage on Windows 11

You open Task Manager and see svchost.exe using 30% or more of your CPU. This is common in Window...

Fix Microsoft Teams Backup Error 0x80070057

When backing up Microsoft Teams data, error 0x80070057 often appears as 'The parameter is incorre...

Fix Windows Activation slmgr Permission Denied Error

When you try to activate Windows using the Software License Manager (slmgr) command-line tool, yo...

Fix BitLocker Connection Timeout and Permission Denied Errors