My fellow Scot might have been more explicit !
Doing a system restore may well solve your problem and can do no harm if it doesn't. Two ways to get there - click 'Start - All programs - Accessories - System tools - system restore' OR click 'Start - Control panel - Recovery - Start system restore'.
Clicking assumes your mouse is still working. If it isn't you can try using the 'Tab' key. As you press it, it moves around your desktop one spot per tap. You know it has selected some point because it has a sort of fuzzy ring round it. When you get to the place you want, press 'Enter'.
When you get to the restore screen you will see one or two restore points listed. Select one that precedes the start of your problem. If you don't see one early enough there is a button below the main window 'More restore points'. Once you have selected one then click 'Start restore'. You will get a couple of warnings, just accept them and let the system do what it does. It may re-boot automatically when it is finished, if doesn't, re-boot anyway and hopefully your problem will be resolved. If it isn't, post back.
Two small points. First of all - welcome to BC !
Second, what is this foreign language - Canadian ? I always thought that the vast majority of the citizens of both Arizona and Canada spoke English !