It's definitely not a fake version. I updated, installed, uninstalled. What factors could be involved? -snip-
Have you verified your downloaded Electrum installer? The last update.
Here's how to:
https://bitcoinelectrum.com/how-to-verify-your-electrum-download/If you can confirm that it's not a fake, then it could be your seed phrase or some private keys (
if you exported) that are compromised.