I have 4 new folders that popped up within the last few days (after an update that took much longer than normal). inside are more folders like "hotfixexpress" and other similar files. Upon reading around (this site = very helpful!) they appear to be Windows updates. I'm not sure if they are good to keep or if i should delete them and check for available updates again. how can i tell what to delete and what to keep? Thanks in advance!