We have recently begun noticing issues logging into some of our Windows XP Professional and Windows 7 Professional domain workstations. Both domain users who have previously logged onto these machines and users new to the machine are unable to log on. Reported symptoms include “Boot Failure” and “inability to login to a network user profile”. Upon investigating we have determined the affected machines all contain more than 25 user profiles. (Machines containing less than 25 user profiles do not appear to be affected.) At this time we have been unable to find any documentation that would indicate a limit on the number of user profiles on in use on these machines. However, removing the user profiles by deleting them from the Windows \Users folder and the registry does resolve the issue and allows all users to access the machine. We are seeking any advice on how we could better resolve this issue. Additionally these machines are being in used in a lab \ classroom setting where they will be potentially access by a significant number of users. Any recommendations on how we remotely manage (audit & remove) outdated users profiles would also be appreciated. Thank You,

Hi, Thanks for the post! I recommend you use the Group Policy to manage the user profiles. Refer to here: http://sourcedaddy.com/windows-7/managing-user-profiles-using-group-policy.html Regards, Miya Note: Since the website is not hosted by Microsoft, the link may change without notice. Microsoft does not guarantee the accuracy of this information. This posting is provided "AS IS" with no warranties, and confers no rights. | Please remember to click "Mark as Answer" on the post that helps you, and to click "Unmark as Answer" if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

Thanks for the information! I see that this will allow us to delete profiles older than X days on Vista and newer machines. Do you know there anythign similar available (such as logon script) available for XP clients? Thanks,

Hi, You can use Delprof.exe http://www.microsoft.com/downloads/en/details.aspx?FamilyID=901A9B95-6063-4462-8150-360394E98E1E on your Windows XP clients. This tool can help you delete the user profile. For Windows XP related question, I recommend you ask in Windows XP forum: http://social.technet.microsoft.com/Forums/en-US/itproxpsp/threads You could get more help there. Regards, MiyaThis posting is provided "AS IS" with no warranties, and confers no rights. | Please remember to click "Mark as Answer" on the post that helps you, and to click "Unmark as Answer" if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.