Windows cannot log you on because your profile cannot be loaded. Check that you are connected to the network, or that your network is functioning correctly. If this problem persists, contact your network administrator. DETAIL – %1

The system is unable to load any of the following: the user’s local user profile, the user’s roaming user profile, or a temporary profile. As a result, the user cannot be logged on.

Possible causes include: insufficient computer memory, low disk space, or corruption of your user profile and default profile, or security issues such as incorrect permissions on the local profile or the system profile.

To troubleshoot this problem, try one or all of the following:

• Review the Event Viewer logs. Look for additional information and search for related profile (userenv) events.
• Ensure that you have sufficient computer memory and disk space.
• If the user’s profile registry hive (ntuser.dat) is corrupted, replace it with the backup copy of this file.
• Verify that permissions are set correctly on the user’s local profile folder.
• If this is also a roaming user profile, ensure that the correct permissions are set on the user’s roaming profile folders stored on the server.For more information about user profile permissions, see “User Data and Settings Management for Windows,” at the Microsoft Web site.