Yes, this is what was happening. I'm a substitute teacher, and often have to do work for other jobs after I get home (as well as check on Disboards, play Pogo, etc). And it would update just about this time, making everything virtually stop. We have an older computer with not enough RAM. And everytime I would run Malwarebytes, MSE would decide this was a good time to scan as well, I guess trying to show who was boss, and would make my computer freeze. We don't have a widescreen monitor, I've already adjusted the screen size to everything that was offered, nothing looks like it did before. I don't want to do the system restore if that will restore the MSE-- will it? or will it just restore settings? I'll try it if that will be the case. The settings didn't change when I installed MSE, just when I deleted it! Thanks for everyone's help.
I have that same problem with my AVG antivirus. I like to check my email first thing in the morning. AVG, regardless if I set it to update later in the day, (it will just update
again,) 
likes to automatically update around 8 am. If I don't get on at that time, it will automatically update itself, first thing, whenever I finally get on. That program takes 15-20 minutes now to update itself, and it S . L . O . W. S down my computer like a few bleepable pointworthy words.
Yes, System Restore will restore MSE and other programs, too. The only things it will NOT change are document files, email, personal files like that. If you had bookmarked new favorites in Internet Explorer, from the day you pick to restore, you do lose them, unless you back up your Favorites file and then replace it later. But, that's about it.
You can always UNDO the System Restore. (Then you'd be back to the mess you have now.) For anyone not very computer savvy, it their best friend.
To do a System Restore:
Go to START -> Programs ->
Accessories -> System Tools ->
System Restore
Then pick a date like last Friday, what ever is BOLDED around then. (Remember you can always UNDO it, or even Undo and pick an earlier date if necessary.)
It will reboot you to an earlier time and you should get your screen setting back as well as MSE.
