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

7-Zip 'Cannot Open File as Archive' Error: Malware or Not?

You try to open a file with 7-Zip and get the error 'Cannot open file as archive'. This can happe...

PowerShell Profile Script Not Loading: Practical Fixes

You open PowerShell, run a custom function or alias you defined in your profile script, and nothi...

Fix Command Prompt Authentication Failed for Network Drive

When you try to map a network drive using net use in Command Prompt and get an authe...

Windows Defender Setup Checklist for New PC

When you set up a new PC, Windows Defender (now called Microsoft Defender Antivirus) is already a...

How to Fix Outlook Proxy Authentication Failed Error