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

Fix Task Scheduler Error 0x80041315: Update Fails

When a scheduled task update fails with error 0x80041315, the task typically cannot be modified o...

Fix Remote Desktop Connection Refused Due to Firewall

You try to connect to a remote Windows PC via Remote Desktop, but get an error like “Remote Deskt...

Fix Windows Security 404 Not Found on Startup

When Windows Security shows a 404 error on startup, it typically means the app can't find its req...

Fix SFC Scan Error 0x80073712: Corruption Found but Unrepairable

When you run the System File Checker (SFC) in Windows and it fails with error 0x80073712, the mes...

Fix Windows Defender Update Fails with Connection Timeout Error

You open Windows Security, click to update virus definitions, and after a long pause see "Connect...

Fix SSH Permission Denied (publickey) on Raspberry Pi