What OS, did you have problems to cause you to uninstall, do you have the install disks? Did you Deactivate before uninstall? Same computer or different?
I was updating CS6 and got erroe U44M1P6.
I was suppose to reinstall CS6 but instead I deactivated Cs6 . It is no longer in my Applications.
Version OS X 10.6
If you deactivated, but did not uninstall, then go to Help/Activate. In a Mac not sure if that is correct, may be in About Photoshop
Thank you .. I was able to resolve problem.
Sent from my iPad