Checklists for software errors, setup, and tool workflows.

Fix Windows Update Stuck at 0% Downloading

You click 'Check for updates' and see 'Downloading 0%' for an extended period. This is a common i...

Fix Windows Update Configuration Failed Reverting Changes Error

You restart your PC after a Windows Update, only to see “Configuration failed. Reverting changes....

Fix Git Clone Permission Denied (publickey) on Bitbucket

You try to clone a Bitbucket repository and see:

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

How to Fix Windows Defender Not Opening

If Windows Defender won’t open—whether it crashes, shows a blank window, or does nothing when you...

Fix BitLocker Rate Limit Error via Command Line

If you see a “rate limit” error when using BitLocker, it usually means the system is throttling e...

Fix Firefox Not Responding Due to High Memory Usage

If Firefox stops responding or your system slows down, high memory usage is often the cause. This...