.LNK problem

I downloaded this program "Play it All Media player" thinking it would help me with playing my home made video. It didn't. I uninstalled it, all my folders and icon became .lnk. NOTHING worked. I restored it by the method I learnt on this site. Everything worked. I uninstalled again, it "crashed" my computer again. I don't know much about computers. I have restored it again, waiting for salvation. Is this a virus? Any help out there?

• › same .LNK file problem but still unsolved
• › svchosl.exe problem
• › dakov.exe file causing problems?
• › problems with avp.exe
• › All exe.file change to .lnk
• › my all icon and program are opened as .lnk
• › i have lost lnk file