hi. windows 8 pro x64. i have used the lastest cccleaner registry cleaner trying to solve a problem i had accessing a certain folder via explorer, i did a backup of the registry. now when i use a certain app(automatic subtitles downloader - a zip archive, no installation) that uses .NET framework, it does not start and i get the following info: Steps I tried: i tried to reinstall .NET frameworks, but the installer says its built into windows 8. i tried to restore the reg backup from cccleaner, and restart, no help. i tried netfxrepairtool.no help. i have tried renaming "clr.dll" to "clr1.dll, just to see if i can then install it again or fix it, didnt help, but when i try to launch the program, i get a message i need to install frameworks 4, when i open the link and download "dotNetFx40_Full_setup", i have two options:repair, remove.both of them give me the same "i do no have to install, its part of windows 8" i have tried "add remove windows features" uncheck .NET 3.5 and 4, restart, and reinstall them again from Features.didnt work. i am clueless. is there anyway to fix without "refreshing" windows?