New
#1
Window Outline Remains Even Though Window Is Closed
Last, previously closed window outline remains displayed. Sometimes can 'force' it to go away by left clicking on an unused portion of desktop but not always.
Just got laptop for Christmas and has always had this problem so might be a setting.
Have looked at Advanced -> Visual Settings but didn't see any that looked like would fix (tried setting Best Performance - which turned everything off but didn't fix)