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

Fix Windows Command Prompt Blank Cursor Not Showing

You open Command Prompt, type a command, but see no blinking cursor or only a blank rectangle. Th...

Fix Docker Build 'exec format error' for ARM64 Images

When building a Docker image for ARM64 (e.g., on Apple Silicon or AWS Graviton), you may see an e...

How to Unlock a File Locked by Chrome Browser

You try to rename, move, or delete a file, but Windows says it's open in Chrome. Even after closi...

Fix Remote Desktop Access Denied with Microsoft Account

You've set up Remote Desktop on a Windows PC and signed in with your Microsoft account, but when ...

Fix Outlook Email Sync Failed on Ubuntu

Outlook email sync fails on Ubuntu: what to check

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

How to Disable Rate Limiting in Windows Security

Rate limiting in Windows Security can sometimes interfere with legitimate applications, causing c...