Acrobat Pro version 7.1.0 Update

you can update manually (to the last v7 version) using adobe's ftp server..

Actually, the latest update for the version is 7.1.4. They are all available here (note you can't open this link in your browser. You must use an FTP client):

ftp://ftp.adobe.com/pub/adobe/acrobat/win/7x

But as mentioned, this is an ancient version. You should not use it. It's a security risk and will likely not run well at all on your operating system. It's time to get an upgrade.

I believe 7.1.0 (released 14 years ago) was the final update to Acrobat 7. There are no more. After that was a paid upgrade to Acrobat 8. It is important that you know: Acrobat 7's activation server was switched off, and the normal installation can no longer be activated by any means at all. Do NOT uninstall it, or expect to be able to use it on a new computer; best not to mess with the old computer, it's a miracle it's running at all. The current version is Acrobat Pro DC, which is a subscription product (around $16 a month, annual commitment).