I wonder if there is a history of infecting user computers with wallet applications?
I mean its a lot of wallets and, like, you always install uninstall them.
Sure i have antivirus but its a lot of very complex code deployed around.
I can give you an example of one. There is a Litecoin wallet that has a very advanced malware on it called Sality
https://en.wikipedia.org/wiki/Sality.
It is a real pain to get rid of it, so be very careful.
I would suggest to not run any non-open source program on the same pc you have any coins or anything of value on, including an open source OS. But it is your choice on how much you care about those things.