Is this "health record" online or an application software installed on the computer system?
If the former has nothing to do with the win7 you installed.
If it is the latter, it may be a compatibility problem between software and system.
Win7 has good compatibility, but there is no guarantee that there will be no compatibility problems. For the sake of elderly patients, if it really doesn't work, switch back to the original system. Maybe this is why many office computers still use XP.
Or go online to see if there is any compatible software.