All My Apps ( .exe files ) have Gone No Reason?

Good morning
Yesterday I installed "comodo back-up" (after Gennie timeline stopped their free version. Just after that I tried to do a Wireless network home set up to add ournew TV to the homd network via the connection the TV is streaming fine but Ive lost all my Application Files allmy Apps Fifefox browser Gmail Media Monkey Free clips M8 Revo uninstaller Internet Exp Google Dropbox adobe Acrobat Reader Says Error the application that this shortcut refers to has been changed or removed so the shortcut will no longer work properly. Do you want to delete the shortcut? Theses ones have a different error. Google Calendar not found. Google maps app not found. Yet everything else Kingsoft Writer all work CCCleaner AVAST. TRIED A SYSTEM FESTORE DID NOT FINISH
I cannot find them in Provrams x 86 and if I do its in programs and User Apps roaming and I cannot open them. They are all empty or just wknt open because the application, Exe files for them are gone all the other stuff in the folders are missing crom each one. I can use mywives Ipad. Any help please?
WIN 8.1 Dell 660 Avast C Cleaner MWMBs