Viruses and embedded Windows7 in DSA8300

We recently had a few short issues about viruses on some computers still running Windows 7.
While checking the versions of Windows installed on our sampling scopes (DSA8300), we also realized that the "embedded" version was also Windows 7.
Windows 7 Ultimate
2009, Service Pack 1

What do you suggest?

Hello,

Due to the age of the DSA8300, Windows 7 is the newest OS that was made available for it. Most of the time the best solution is to run these machines totally off network now.

Thank you.