I understand, I'll try and accomplish my goal!) Thanks for the advice
And the question is, how can I find and download the version 2,9,3 portable on the Electrum website? Thanks for the link ... but it's hard to trust these links in our time

The link I gave (
https://download.electrum.org/2.9.3/) IS the electrum website... notice the "electrum.org"

Anyway... goto the download page:
https://electrum.org/#download and click the "previous releases" link... it'll take you to
https://download.electrum.org/ then you just want to look for 2.9.3 folder (
https://download.electrum.org/2.9.3/)... and in that will be all the install files for the various OSes... just get the portable.exe (and the portable.exe.asc if you want to check digital signature)