How to Recover Deleted Files on iMac?

Question

I accidently deleted ALot of important stuff by accident how do i recover it from after emptying the trash

Answer 1

Deleting files merely removes the hard drive address information.  The files are still there, but the finder can't see them anymore, and will overwrite that space with new information.

TechTool Pro might help, but there's no guarantee because you didn't have a file protection installed.

Don't save ANYTHING at all to your hard drive for now.  The second you do, your computer is overwriting the files you want to recover.

Get TechTool Pro, and boot up from the disc, and run the recovery routines.