It happen to me too. I was naive to use system restore to find missing files, but the computer went into full recovery. I forgot to look carefully at the warnings on the dialog box saying that if I click "next", the programs and drivers I recently installed will be remove completely except photos, musics, and written documents stay remain in the hard drive. Sh!t I got so mad at myself for allowing the PC deleted my favorite photo editing software aka Photoshop 7. I bought that software for one hundred and ninety-four buck plus shipping & handling.
Anyway I learn this lesson not to mess around with system recovery unless I have USB memory flash drive that contain 32 GB amount of space as backup to save necessary present time files.