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

Fix Windows Defender Error 0x80070422: Won't Turn On

If you see error code 0x80070422 when trying to turn on Windows Defender, it usually means the re...

Fix Windows Activation Service Unavailable on Windows 10 Pro

If you see the error 'Windows Activation Service Unavailable' on Windows 10 Pro, it usually means...

Fix Remote Desktop Permission Denied via Local Group Policy

You try to connect to a remote Windows machine but get 'access denied' or 'the connection was den...

Fix Chrome Proxy Error 'Connection Refused' (Step-by-Step)

You try to open a website in Chrome and get 'ERR_CONNECTION_REFUSED' or 'Proxy server is not resp...

Fix Chrome Profile File Locked After Crash

If Chrome crashes and you see a message that your profile file is locked, it usually means Chrome...

How to Fix Outlook Rate Limit Error in Office 365

Understanding the Error

You may see a message like "Too many requests" or "Server busy" ...