Is it best to have as few GPOs as possible in order to make user logons and gpupdates faster?


There is no hard absolute answer concerning the question of the proper number of GPOs, however there are some guidelines to follow. It is true that having fewer GPOs is slightly faster for user logons and gpupdates, but it makes it more difficult to troubleshoot or disable specific settings. For these reasons there are distinct advantages to having more GPOs as well. In the end, there is a happy medium between fewer and more. Considering that the speed differential is quite small, one should not obsess over consolidating GPOs for that reason. The flexibility that more GPOs give you is worth it. Darren Mar-Elia has a good article on optimization here: