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

Enable Windows Defender After Group Policy Disabled It

If Windows Defender is disabled and you suspect a Group Policy setting is the cause, you may see ...

Fix Remote Desktop Black Screen on Ubuntu

You connect to your Ubuntu machine via Remote Desktop (RDP or VNC) and see only a black screen. T...

Fix Chrome Proxy Server Not Responding for a Profile

If Chrome shows 'proxy server not responding' only when you're using a particular profile, the pr...

How to Fix Windows Update Access Denied Error

You click 'Check for updates' and see 'Access Denied' or 'Error 0x80070005'. This usually means W...

Fix Outlook Email Sync Failed on Ubuntu

Outlook email sync fails on Ubuntu: what to check

If Outlook (via web browser, Evolution,...

How to Fix Network Errors Using Command Prompt Setup

If your internet stops working or you see errors like 'No internet access' or 'DNS server not res...