I then just went to the vSphere client, got a console session to one of the desktops, logged in (which took 1:50), logged off, and logged back in again, it took about 35 seconds. When someone logs in it says 'Preparing Windows' then you get the 'We're Happy You're Here' followed by a few more messages and finally the desktop appears Login times are 1:50, more than a minute longer than Win7.Took a snapshot, made a new pool with just 2 desktops.VMware OS Optimization Tool – VMware Labs Ran the optimization tool found here taking all the defaults.This is the same resources that we use under Win7 Ran Windows updates and installed all available.Installed Windows 10, 32 bit, build 1511 which is the latest available for download.We are running View 6.2.1 under ESXi 5.5 Update 2. I am working on building a master image for Window 10 but found logins to be very slow. It takes about 35 seconds to login to a Win7 desktop We have been running Window 7 using View for several years.