Probably because the question is basically a duplicate of many other questions already asked on Superuser, e.g.:

http://superuser.com/questions/130125/windows-updates-folders-with-strange-names-in-c-drive

http://superuser.com/questions/692683/random-folder-keeps-appearing

http://superuser.com/questions/184597/strange-folders-are-automaticaly-created-in-my-c-drive?lq=1

http://superuser.com/questions/719467/prevent-mysterious-folders-in-drive-root-from-appearing-without-disabling-wind?lq=1