Ya I'm using vista (too poor to afford new computer)
i don't know about windows Vista but i had the same problem with Electrum on windows 7 and installing the latest windows updates worked. specially this particular update (KB2999226):
https://support.microsoft.com/en-us/help/2999226/update-for-universal-c-runtime-in-windowsit has something to do with the Windows C++ redistributable which you need to update.
if nothing worked then maybe it is time you start thinking about switching to Linux which is free. a distribution like Ubuntu is friendly enough and you can easily install Electrum there since it comes with python 3+ already.