You need to download updater for EU. This is what i have done after uninstalling and re-installing CoH. As your play time depends on CoH account and your game code tied to that, no need to buy a new game.
oh thank god for a moment i thought i might loose all my alt's and rewards, thank you for the lightning quick reply Knightly
the hero formerly known as Mr.M
kin--d/blast lvl50 (retired)
'm reborn' lvl50 p/b(retired)
little miss psyche lvl50 ice/mm blaster on defiant
lil miss shade lvl50 warshade
GGRRR s/g member
No worries. I am glad I could help. 
ooh daft question will my villains sub be on that same client download
the hero formerly known as Mr.M
kin--d/blast lvl50 (retired)
'm reborn' lvl50 p/b(retired)
little miss psyche lvl50 ice/mm blaster on defiant
lil miss shade lvl50 warshade
GGRRR s/g member
Yeah, client download only give an access to the game, rest of your personal info data is on your account. So basicly either on your new computer or on your friends computer, after you logged into game with your current account you will have everything you have now.
If you can back the client up to a spare hard drive or DVD you can save download time too. You should just copy it across and when you've done the reset copy it back. Follow the normal instructions for installing and viola bob's your aunties husband.
phew thats good news thanks for that guys
the hero formerly known as Mr.M
kin--d/blast lvl50 (retired)
'm reborn' lvl50 p/b(retired)
little miss psyche lvl50 ice/mm blaster on defiant
lil miss shade lvl50 warshade
GGRRR s/g member
hi to cut a long story down i have major issues with my pc so as last resort before buying a new one am gonna try a master restore(wipe clean and start again).
Now in doing this i assume that all my coh files will be wiped so do i just download client again using my original code or am i going to be buying a new one, any help would be appreciated
the hero formerly known as Mr.M
kin--d/blast lvl50 (retired)
'm reborn' lvl50 p/b(retired)
little miss psyche lvl50 ice/mm blaster on defiant
lil miss shade lvl50 warshade
GGRRR s/g member