Here's my list of things I do when I create a new virtual machine. Or at least I should do but I generally forget to do at least one of them:

 

* Install CCleaner to remove log files and other junk.

* Disable the annoying beep: net stop beep, sc config beep start= disabled

* Disable shutdown event tracker: gpedit.msc / Computer COnfiguration / Administrative Templates / System / Display Shutdown Event Tracker / Disabled

* Enable Shutdown without logon: Administrative Tools / Local Security Policy / Local Policies / Security Options / Shutdown: Allow system to be shut down without having to log on / Enabled.

* Install TweakUI and enable Logon / Autologon

* Disable screen saver

* Install Bginfo and show the computer name on the desktop.

 

There! Now I should stop forgetting these steps.