Photoshop CC 2017 very slow and laggy after latest update

[Crewman_In_Red]

Apologies if this is the wrong sub.

I updated PS a couple days ago and it's been very laggy since.  I never had any lag before, even when working on my large files.  Now there's a couple seconds delay when switching layers, turning layers on/off, using tools, etc.  I've tried adjusting the usual things like allocating more RAM in the Performace tab (fyi, it's not using all of it), checking and unchecking the Use Graphics Processor option, checking the Scratch disks, and turning off Type Font Preview.  I've even defragged the hard drive recently.  Nothing seems to make a difference.

Not sure if this may be related, but I recently also downloaded and ran System Mechanic (before updating PS).  This cleaned up my system and freed up some hard drive space.  I also uninstalled several pieces of software I wasn't using (none was Adobe software).

Any help is greatly appreciated.

Edit: moved System Info from this post to my profile

[JJMack]

Did you reset all tools and reset you Photoshop Preferences.  The latest update to CC 2017 upped its version to

Adobe Photoshop Version: 2017.1.1 20170425.r.252 2017/04/25:23:00:00 CL 1113967  x64

That update was available like 38 Days ago.  An update for ACR 9.12 was available a day or two ago. It should not change Photoshop CC 2017 performance. You Creative Cloud Desktop home should show you when you last updated CC 2017.

[Crewman_In_Red]

I did not reset anything.  Should I?  Creative Cloud says I updated 6 days ago, 1 days before my original post.

[Martin_Bns]

Hi, usually if you notice any strange behavior in Photoshop, try to reset the preferences.
How to delete/reset Photoshop preferences

This solve all the problems 8 times of 10. Which machine are you using?
Any chance you have installed something else?

Check also the space left on your hard disk, some times is it's very low, it can slow down Photoshop a lot (not only Photoshop).

Please let us know,
Martin

[adriani10108562 · Accepted solution]

Hi guys. I had the same problem. Photoshop would Start and Run real laggy. What solved it for me at first was that i did a new user with admin privileges, and in there it ran reeal fast and smooth. That raised my question..why doesnt it run the same in the other user? so i deleted that user and i tried another thing. first unninstall photoshop from creative cloud. then.. Start: type Run, then in Run type regedit. there find LOCAL MACHINE, SOFTWARE, adobe, and delete the folder Photoshop. Restart PC and reinstall photoshop cc from Creative Cloud. hope it helps. Cheers

[dillonj65128483]

Adrian's solution worked for me as well. Thank you.

[BuckDesign]

Hi guys. I had  same problem. Photoshop would Start and Run real lagggy. What solved it for me was at first was that i did a new user with admin privileges, and in there it ran reeeeeeal fast and smooth. That raised my question..?why doesnt it run the same in the other user? so i deleted that user and i tried another thing. first unninstall photoshop cc 2017 from Creative Cloud by Adobe. then..- Start: type Run, then in Run type regedit. there find LOCAL MACHINE, SOFTWARE, adobe, and delete the  folder Photoshop.    Restart PC and   reinstall photoshop 2017 cc from Creative Cloud by Adobe.  hope it helps. Cheers.Crewman.In.Red​ !