Are you using your system disk as the primary scratch disk?
And have you tried cutting down on the History Steps?
As for general Photoshop Performance related advice:
Yes my system is the primary scratch disk.
I lowered the history to 50. That does not help.
I visited the link you gave me below.
I am a do as told person. So the things written there are
confusing to me.
I don't understand and see the steps to take in such technology issues.
Thank you for your interest
On Nov 25, 2014 12:26 PM, "c.pfaffenbichler" <firstname.lastname@example.org>
50 History States – why so many still?
Have you restarted Photoshop after changing the Performance Preferences?
My work requires that many history.
I am using 2 pixels brush to make dotted effects. This is the simpliest way
So i need that many undos.
Yes i did restart.
On Nov 25, 2014 12:39 PM, "c.pfaffenbichler" <email@example.com>
Increase virtual memory. It might be that Photoshop is filling the disk so virtual memory cannot be increased at this time, or it is reaching the limit default in your system. Virtual memory is a Windows idea, not Photoshop, but it limits the amount of memory Photoshop can use.