ISO info acknowledged.
As long as you can open the documents on the Windows 10 Acer you should be fine on the Toshiba as well.
The following only as long as you are confident that you have all your data backed up elsewhere, first thing we will try is to see if we can repair Windows 7 and updating in particular;
Download then run the Windows All in One Repair tool (free) from here, disregard the malware guidance but follow the other steps to the letter and in particular ensuring that you first create a new restore point and perform a proper Windows clean boot before running the repair, details for the clean boot here.