IMPORTANT
It is recommended that File Restore be installed on a different drive to the one where the original deleted data resides. Saving File Restore (and thereby writing data) to the same drive has the potential to overwrite and permanently erase the very data that you are attempting to recover.
The default download version of File Restore includes a full install. The Full Install version will be installed on the system drive, typically the C: drive. If the lost or deleted data resides on the PC system drive, then the Emergency Undelete No Install version is recommended. The No Install version will NOT save File Restore installation files to the system drive! The No Install version will therefore minimise the chance of overwriting your deleted or lost system drive data.