back up thru win7

hello, presently i am making backups thru the windoze software. lets say by mistake i would erase a folder and no be able to fin it on the hard drive, i would then go to my back up...

would i be able to find this specific folder or i would have to reinstall everything that was backed up?

You can restore individual files. This tutorial will show you how. http://www.sevenforums.com/tutorials/648-restore-backup-user-system-files.html

You can also easily recover lost files from your restore points. Here is how: http://www.sevenforums.com/tutorials/132087-shadowexplorer-recover-lost-files-folders.html