Deleting files by accident is a too common mistake.
What if the recycle bin has been emptied?
Then its time to fire up TestDisk.

If you want to run TestDisk, remember that it must be used with administrator right.
Running it as a standard user will make it fails to detect any installed hard drive.
To run it with an elevated privilege, right punch the icon of TestDisk and choose Run as administrator.

opt for one you want by using your up or down key and then press Enter.
What comes next is a disk selection.
The detected disk capacity must be correct, otherwise the recovery wont succeed.
If it is already correct, press Enter to complete the current step and to go forward.
The next step requires you to go for the correct partition table throw in.
TestDisk will be truly a handy solution for those who are familiar with data recovery methods.