Unlocker files are missing

Registration date
Friday October 23, 2015
Last seen
October 23, 2015

Recently I install unlocker and I delete some files that nedded permision after deleting files I go in the drive and I observed some other files are missing too, but i didn't delete them I cannot see them or search for them the only method to go to the folder is to insert destination in the adress bar D:\folder and it shows me the folder content unharmed. the disk space it's the same it didn't modify the only problem I have it's those important files can I make something to undo changes please..Sorry if I selected the wrong category and please help me fix my mistakes