I'm looking to free up space on my C drive using mklink to transfer my user files to my D drive. However, I'm concerned about deleting the original files from C drive. Can someone confirm if it's safe to delete those files after creating the link, or will that mess up my computer?
5 Answers
You can move personal files without any issues, as long as they aren't essential for your programs or Windows itself. Just make sure you're only dealing with your personal documents, pictures, etc.
For main user library folders like documents and pictures, you can right-click the folder, go to properties, and change the location to your D drive. It's a built-in method that works well for those folders!
Just a heads up, hard links typically don't work across different drives. It's usually best to stick to user files and avoid moving app data or anything crucial for the OS.
Don't try to do this with third-party apps. Instead, go to your user profile, right-click on folders like photos or documents, select properties, click the location tab, and change it to your target drive. It’s straightforward and should save you hassle!
Only move your personal files. Most important app data and the operating system need to stay on the C drive. You can clean up temporary files from the C drive, though!

Are you assuming OP would want to use the command line instead? That's definitely an option too!