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Looking for a back-up program or script to be run by a non-admin

• I'm looking for a back-up program or script that can be run without needing admin rights (to install, even). I have taken the unofficial duty of backing up work files for my workgroup, and I'm looking for something smarter than copying everything once a month. More details inside. First, this is all on Windows 7 machines, and I don't have admin rights to install programs. If there's a great, free app that needs to be installed, I can probably make a case to get IT folks to install it for me, but it has to be able to run by a non-admin. (And it has to be free, because IT doesn't like to manage licenses for software that hasn't been approved by higher-ups, but they're OK with people using Chrome or Firefox instead of IE, and other similar cases of beneficial freeware.) We have official IT back-ups, but that back-up scheme has lead to some accidental deletions becoming final, as the back-ups are over-written every so often. Our files are only 10-15 gb, so it's not huge spacefill to copy the directory once a month and keep a few months of files that way. But I realize this would all be much faster and use less space if I could only back up the new or modified files, but that requires something beyond my basic "copy everything" method. Also, by adding a new base folder, I often have trouble copying files due to path-length limits. I fix the offending files and folders, leaving a note in the original file directory about the original file name and I tell all my co-workers about this so there aren't any surprises, so sometimes I'm lucky and everything copies without an issue. Unfortunately, this last copy had 100+ files where the pathname exceeded https://msdn.microsoft.com/en-us/library/windows/desktop/aa365247%28v=vs.85%29.aspx, which I have to manually change. Because the native Windows "file name/path is too long to copy" dialog box only tells you one part of the file name path, I run https://pathlengthchecker.codeplex.com/ to find the offending files more quickly. In summary, I'd like: A free Windows-base program or script, thatcan be run without being installed (or is good enough to sway IT); will do a dumb complete backup when manually or automatically run, orwill only backup the new and newly modified files, and can log the file path names that are too long to copy, or prompt the user to change them while copying.I also realize this might be a tall order, so I understand if this thing does not exist for free in any form.

• Answer:

  Windows 7 has a http://windows.microsoft.com/en-us/windows/back-up-files#1TC=windows-7, and you can tell it which files to backup. It's pretty easy to use (http://www.howtogeek.com/howto/1838/using-backup-and-restore-in-windows-7/). I think it ticks all your boxes (it backs up modified and new files, and keeps old versions). You can delete old backups that are taking up space. It works best with an external drive physically connected to the computer. I've tried it with a network drive, and it's flaky.