Happy to help, Jacob.  CS3 may not work on my Windows 10 machine forever, but it does work for me now, and I'm not subjected to an Adobe CC subscription.  For everything I need to do, CS3 works just fine.  Yay! ... View more

I had the CS3 suite originally installed on a Windows XP machine. When I installed the same CS3 disks on a new Windows 10 computer, it ran fine for about a year, getting the "temporary activation" popup which let me log in ~5 times, so I would tend to keep logged on to the Photoshop CS3 application. When I finally got the "temporary activation expired" popup, I tried everything and got as frustrated as everyone else. Finally, yesterday I decided to experiment and used a combination of the following: Activation or connection error when starting CS3 or Acrobat 8 Resolve "temporary activation expired" error for CS3 and Acrobat 8 Use the Creative Cloud Cleaner Tool to solve installation problems The real secret, though, lies in removing the cached licensing database file (cache.db). This is explained in the Resolve "temporary activation expired" error for CS3 and Acrobat 8  section.  It resolved the conflict, and subsequently worked for me.  All of the CS3 applications that I need (Photoshop, Illustrator, & Dreamweaver) now work under Windows 10. Good luck. - Mark ... View more

Monika, your proposed solution is worthless . . on Windows 10!  It just doesn't work because Adobe does not allow you to enter a new serial number or activation code, once you download their CS3 version.  Adobe has made it impossible to use CS3 on Windows 10. ... View more