Windows Movie Maker won't open in Windows 7 Posted August 8, 2011 I had run WMM before this, but I'd run WL updates since. It isn't a program I use often, this was probably the 3rd time using (trying to use) it. The install date on WL was 14 May 2011, but WL Sync was 16 March 2010 (the date I received my notebook from Lenovo). I remember installing sync as well as WL, but it is possible it came preloaded. Since I didn't have a copy of Win7 I didn't do a fresh install to get rid of all of the crapware like I normally would.After uninstalling all components of WL I reinstalled, WMM tries to open as before and then closes. But if I run as admin it will full open now.Thanks for the help Tripredacus.