Reply To: Windows 7 and 64 Bit Operating System

see this thread:

https://forums.adobe.com/messag…..90#1322490

or if you don't want to read the whole thread, give this a bash

1) From Windows Control Panel, select Personlization. (You also can right-click the desktop to access this.)

2) From the left menu, select Adjust Font Size (DPI).

3) Select Default scale (96 DPI).

4) Ok to close the dialogue box.

5) Reboot the computer with the new setting.

one of my clients experienced the same thing. thought the worst until i saw this thread and it fixed it up right away.