My new Windows 7 (Enterprise) laptop will not allow me to change my User Account picture. How can I enable this?
It's possible that there's some group policy preventing this. Talk to your sysadmin. Potentially your cached local user account could have something corrupt as well.
I hope it's ok to answer this old question, but it was the first thing I found when searching for it, so I thought it might be helpful to others to try what worked for me.
Another thing you can try if you feel comfortable with using RegEdit. (this can, of course mess up your computer, so use at your own risk).
This will obviously change it for any local policy available on your computer. If you want to change it only for specific policies you will have to check which you are changing first.
Note: this will only affect local accounts. For Group / Domain policies you will most likely need to change the domain settings on the server.
ALTERNATIVE: Change default user account picture
You can change the default user picture, but that will mean every user will have the same picture, which is probably not what you want.
Hope this helps.