User Profile Service failed the logon. User profile cannot be loaded.

I had problem login in to my User Account. I pressed F8 key before the windows logo was displayed and I was taken into the SAFE MODE. After logging in at SAFE MODE I followed the process as stated with REGEIT and so on...to final step 9, and after I restarted my computer I was able to successfully Log Into my User Account. I'm currently backing all my pictures to my Seagate hard-drive just in case.

Thank You! Great Program Advice

Hi,
I also get this message when i try to logon, but i can logon to myu account in safe mode, so i suspect the account itself is not corrupted bit it isnt read properly. I have had the problem before and rebooting used to fix it but doesnt anymore. Anyone have an idea?

i am faced with similar error..

unfortunately i went a bit berserk.. there were two keys one with the .bak and one with no .bak with similar name.
i unfortunately deleted both and tried to login the user but got above prompt.. "User Profile Service failed the logon. User profile cannot be loaded." ..

the background situation :
this machine is joined to a domain. and one user profile went on temporary mode. i.e. all his work on desktop was not there after reboot. so i went and deleted the above two keys.

now new users on that domain can login to that machine but that problamitc user cant . he gets the above error. User Profile Service failed the logon. User profile cannot be loaded...

now what to do ?

plumpf said:

i am faced with similar error..

unfortunately i went a bit berserk.. there were two keys one with the .bak and one with no .bak with similar name.
i unfortunately deleted both and tried to login the user but got above prompt.. "User Profile Service failed the logon. User profile cannot be loaded." ..

the background situation :
this machine is joined to a domain. and one user profile went on temporary mode. i.e. all his work on desktop was not there after reboot. so i went and deleted the above two keys.

now new users on that domain can login to that machine but that problamitc user cant . he gets the above error. User Profile Service failed the logon. User profile cannot be loaded...

now what to do ?

Just to update that the issue is resolved now.

I just restarted the system and that particular affected user 3 able to login successfully.

I had not restarted the system earlier.

Thanks Brink. This fix solved my login issue.
This is the second time it has happened to me. The first, after spending some days attempting to fix the problem (and not having found your tutorial), required me to create a new user account and transfer all the data across. This worked fine, albeit time consuming, but when faced with that again I can't say i was too excited.

Has there been any investigation, apart from the known causes listed at the start, into how or why this is happening, or how to avoid it occurring? It looks like alot of users are affected. In my case, it has happened more than once.
It does not appear to be malware/spam related, more a design issue with Windows.
From that, can user accounts be bypassed somewhat. I still run XP on my home computer (this one is a work laptop) and no accounts have been set, just what is set by default. No password to log in, no different profiles, nothing. Never once has a problem like this been encountered in, what, 10-12 years. Here we are 3-4 years into Win 7/8 and is seems to be happening to many people more than once.