Guild Wars 2

SO,
I first got GW2 When it came out, Played it on a windows 7 laptop with minor lag but fine,
THEN, upgraded to windows 8 when it came out. Guess what. RAN FINE
no lag, okay yes i need to have it on the lowest resolution (criminal i know), but i cant afford a decent machine, either way, it runs fine, no lag, no issues, no bumps. then last night i get home from work ready to play. hit open and i get the message appear

“This app cannot be opened on your pc.
check software provider for another version”

i’ve not updated my pc, i’ve not changed anything. this morning i put GW2 on my work pc. a beast of a machine which can handle it fine and i received the same message???

i changed the compatability to windows 8, and windows 7 on both pc’s to see if that makes a difference,
Factory reset my laptop and that doesn’t work,
currently reinstalling, but it didn’t work at my shop so i doubt that’ll make a difference!!!

does Windows 8 suddenly not run GW2??
Anybody help please, if i cant get it working i wont be able to play again because there’s no way in hell i can afford a new machine

I just opened the game on windows 8. Are you trying from the desk top?

Bellizare.5816:

I just opened the game on windows 8. Are you trying from the desk top?

I normally run on the surface pro tablet, win8 and 8.1 never any issues,
since this morning i have tested on two win 8 pc’s, 1 win 8.1 and 1 win7 pc. none of which work,
(same game files and application as i have always ran it off a usb to save space on my computer ((and it’s portable))!!
My internet is beyond terrible so im still re-downloading wondering if its the game file now,
thanks for replying. I will comment with an update as soon as it’s redownloading.
Thanks.

Check the USB folder permissions and run the game as administrator. While folder permissions do generally follow the USB, a system can be configured (not intentionally) to set a new drives permissions it is connected and mapped. This would explain the USB that used to work on a system, now longer working.

Hey guys, thanks again for the replies! .
Tech support: when i ran off the windows 7 it said the game wasn’t configured to run on a 32 bit operating system (making me think it may be the 64 version. BUT it wasn’t it was actually 32bit)
i checked all the permissions and nothing had been changed.
redownloaded game and it works! now updating to win8.1 again and will comment if it still runs!!

and finally, it works on win 8.1, running from a usb.
somehow my game must have become corrupt?
thanks for all the help
sorry for all the bother!
at least if it happens to anyone else, just uninstall and reinstall!!