Ctrl delete alt shift buttons not working?

[Coolone]

I was playing Sims 3 on my Gateway computer and I held the shift button to long. A pop up came up asking if I wanted to enable, disable, or change settings for my shift key. Well I ignored the pop up and then my game wouldn't let me use the delete button.
So then I went to the control panel and made sure stick, toggle, and filter keys were unchecked. They were. So I tested my keys again and ctrl alt delete worked and so did F1.

I went BACK into Sims 3 and my keys still aren't working in my game. Any advice? Please?!!

[GM]

Its stikky keys and toggle keys.
You have to disable and uncheck all the option in that page.
Don't ignore that page.
Then only you can use shift or alt button fully.
Hope this helps.