Thanks for the fast response,
yes, I do have a gt 540m (for laptops).
Doing that I was able to install it, but launching it made nothing. After a restart, launching it with intel's HD graphics card I can run it so far.
Thanks for the help.
Months ago it simply crashed whenever I opened it, after years of using it with no problems.
Now I can't even install the latest version, gives the following error:
dot.net framework is already installed too.