For example, I just had 3 files open and closed all but a 56Kb jpb - yet PS is still using 1.142 Gb of ram. It seems like PS is not releasing memory when images are closed. When I checked the task manager, PS was almost 1Gb ram to view a single jpg. Music playing in iTunes would 'skip' like an old record, with several pauses in the music while PS opened or saved a file. What I noticed first was that PS would take a long time to open, affecting other programs during the process. I have tried suggested solutions and short of uninstalling/reinstalling everything nothing has worked. (I wonder if there is something internal increasing checks of licensing given the upcoming and now passed expiration.) It also may be related to whatever underlying problem makes it impossible for me to update Photoshop CS6 or install Photoshop CC from the creative cloud. These problems began about 1 month ago and I suspect may be related to the fact that one of the 2 CC memberships associated with my account was about to expire.
I have used Photoshop since 1996, so am a seasoned user. The graphics card is the Intel HD Graphics 4000. I7-3632 CPU with 16 Gb ram running Win 7 Pro 圆4. I am using CS6 because I have never been able to get CC to install. Over the past month Photoshop has become a nightmare to work with.