I've just turned it off as well and have no issues. I don't run the hidden account but thought she may want to just to see how it goes.
Win7 is rock solid. I switched my live rig to Win 7 .


John
ESI Gigaport HD+
Lenovo Turion II /4 Gig Ram/ Win7x64 be
15.6" Monitor
"The only Band is a Real Band"
www.wintertexaninfo.com/BANDS/JohnnyD.php