do you happen to have multiple instances of Flash Player installations listed under Control Panel - Programs and features?
also make sure you are using a user account with administrative privileges/permissions and you run the uninstaller As Administrator (if UAC is enabled).
 
you can live without flash player at all, only some websites will prompt for it, but the browsers will work normally without it.
 
reformat and clean install is the simple way out and could be better if you suspect a few corrupted driver/app installations. broken windows registry can turn out to be a nightmare and usually no app can fix that for you. it will probably be wise to do a clean install if there is nothing important on it that must be on at all times.
 
I work with production servers and workstations, so I am used to tinkering around them and avoiding the reformat at all cost if only there is a slight chance to fix the issue manually or semi-automatically. for home computers I have no mercy though, re-install and done

Nope, there is no flash player installed since i removed it earlier only adobe reader is left.  And yes, my account is a Administrator since this is my own personal rig. 
 
Lol i think i'l stick to your "avoiding the reformat at all cost if only there is a slight chance to fix the issue" rather than reformatting straight away this way i can learn a thing or two, plus i think the only issue i have on my PC is Flash related, all driver crashes were flash related >.<
 
Will keep trying and would appreciate the continued help if possible :)
 
 

so after you installed flash player plugin (either browser), when you go to this page, what version does it display?
http://www.adobe.com/software/flash/about/
 
which nvidia driver are you running? I had lots of trouble with 301.4x and found the 296.10 works best for 570 SLI...

I actually have a similar issue, only it's quite the opposite.
 
Sometimes my GPU clock gets stuck at 50-60GHz, even when I try to run games. This isn't fixed until I restart my computer.
 
I have a gtx 570 SC and am running evga precision x.

All of you that are experiencing these issue have you tried to clean install the driver meaning removing it all in safe mode using driver sweeper to remove any and all the left over stuff?  ALso have you update the firmware on your 570s?  If all programs are closed and your card is stuck at 405mhz one of 2 thing is happening either you have a program running in the background you arent aware of or the driver is corrupted and your card is not reaching its low power state.  Ive only seen this one time and that was with logitech game panel software for the longest time even minimized to the system tray it would keep my cards at 405mhz no matter what.  Problem disappeared with the most recent version and newest nvidia drivers.
 
The fact that restarting clears it up for a few of you tells me you have corrupted driver install. 
 
So i recommend you download driver sweeper boot into safe mode and completely wipe the nvidia driver out and reinstall it fresh.  Remember phsyx driver cant be removed in safe mode.  And be sure to change windows device installation to do not install drivers from windows update.

I actually stopped caring about this issue haha, more so the only issue annoying me now is when the 301.42 driver crashes when i sometimes open anything flash related while a game is running in the background :D

If someone hasn't said it prior , the 304.79 betas may fix the clockrate issue , if not the 296.10 drivers should definately work.
 
This Nvidias 300series is a total hash job as they have been mucking around with clock rates tying to limit everything and they are just really screwing it up. Its the main reason why i'll be looking at the ati side of things for the next upgrade.
 
I'm limited to 1000mhz on each gtx580 thanks to these drivers (304.79) . On the 301.24s if i set it to over 1000mhz i would get 50mhz (way to go nvidia). They can run at 1065 mhz on the 296.10 drivers however.