I Have made a mistake by deleted "crystal eye" program in my acer aspire 4730Z. I 've look in at recycle Bin but the program wasn't there. How can I get it back so I can use it again? Thank you.
Check the Acer website to see if you can download that software to reinstall. If not, then you will need to back up your files, use the recovery disc or recovery partition to restore it to factory settings, then reinstall all your software and files.