Checklists for software errors, setup, and tool workflows.

Fix 'git pull failed index.lock file exists' Error

When running git pull, you may see an error like:

fatal: Unable to create &#...

Windows 11 Installation Assistant Stuck at 99%: How to Reset and Finish

You're upgrading to Windows 11 using the Installation Assistant, and it gets stuck at 99% for...

Fix Windows 10 Cannot Access Shared Folder Error

You try to open a shared folder from another computer on your network, but Windows 10 shows an er...

Fix VSCode Git Authentication Failed: Permission Denied

If you see 'Git authentication failed' or 'permission denied' when pushing or pul...

How to Fix Git Refusing to Merge Unrelated Histories

When you try to merge two Git branches that have no common commit history, Git stops you with the...

Fix Windows 11 Blue Screen After Update with Bootable USB

After a Windows 11 update, some systems boot into a blue screen (BSOD) or crash loop. This usuall...