"Unable to install"

Well, I was logging in for first time on gw for like a month, (I rarely play now), and it updated as usual. It then closed and reopened and I then saw this error:



I only got this error after I updated gw. I am an admin, and I do have enough space...

Any Help please?

I only have prophecies btw. Windows XP SP-2, Intel Pentium 4 and Nvidia graphics card. 768MB RAM

Here's a thread with a similar problem that may have a solution that will fix it for you.

http://www.guildwarsguru.com/forum/s...php?t=10153109

Other than that, uninstall GW and then reinstall. That should fix it.