Checklists for software errors, setup, and tool workflows.

Fix Git Clone Permission Denied (publickey) on Bitbucket

You try to clone a Bitbucket repository and see:

Permission denied (publickey).
fatal: Co...

Fix Yarn Install Stuck at Resolving Packages Timeout

You run yarn install and it hangs at “Resolving packages…” for a long time, then eve...

Setup Environment Variables to Fix Command Not Found

You type a command you know is installed, but the shell replies: command not found. ...

Fix Windows Security Offline Installer Error 0x80070643

You're trying to install Windows Security (formerly Windows Defender) using an offline installer,...

Fix PowerShell Blank Screen After Windows 10 Update

After a Windows 10 update, you might open PowerShell and see nothing but a blank window—no prompt...

Fix Chrome Extension Permission Denied on Windows 10

If you see a 'permission denied' error when installing or using a Chrome extension on Windows 10,...