Tip #1: Speed up folder opening in Windows 10/11

If your Windows 10 or 11 is slow to open folders, try this:

1. Open Notepad and paste the following code inside:

Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\SOFTWARE\Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\AllFolders\Shell]
"FolderType"="NotSpecified"

2. In Notepad, save this file as folders.reg and run it.

3. A warning window about modifying registry will pop up, click yes. After this, you're done. To make sure it's working, try opening a large folder.

This was originally discovered by the Twitter user @timonsku who wrote:

"OMFG, til why Windows Explorer is sometimes inexplicably slow when opening folders. It's idiotic "folder type" auto discovery parses every damn file in the folder if the folder has not been determined before. Which can be super slow for folders with thousandths of files."

The above registry code turns off the auto-discovery and makes opening folders fast again.

For additional instructions and explanations, check out the original post by @timonsku: https://twitter.com/timonsku/status/1764306103720989115