when i tried to uninstall AVG Free in favor of Zonealarm (i got the vista version working through compatibility), i got bluescreened twice. this then led to the following issues. 1) whenever i start up my computer, the gadgets take forever to load and take up 100% of my processor. i have to kill off the Sidebar process in the task manager before getting any functionality back. 2) when i shut down the computer, it goes to the "Windows is shutting down" screen and doesn't shut off. i left it running for a half hour last night and it did not shut down. in addition to those problems, i have extreme computer slowdowns and can barely do anything. to try to fix it, i did a defrag and a checkdisc, but to no avail. is there any way to fix it? edit: while typing this, it hit me to try a system restore. edit #2: apparently, my computer does not have any system restore points, so i need another fix.