I've encountered the issue more than once in the forums but did not come accross an other solution then "do a clean install".
I just received my new Sony Vaio (C-series) with Win 7 Pro x 64 yesterday. Everything worked out of the box.
Today, I did the following :
# remove McAffee
# remove MS Office Starter
# remove Win Life (everything but the media player)
# installed Bullguard Internet Security
# installed FireFox (latest)
# installed Winamp
# installed LibreOffice
# installed PDF-creator
Then, the laptop asked for a reboot... Which I did... And since then... Nothing.
I get to the welcome screen with "Windows 7 Professional" written at the bottom but the login screen/prompt with user picture does not appear (I have waited for more than 30 minutes).
Same thing in Safe Mode... And System Recovery did not notice any issues...
So, do you guys have any idea where this might come from ?
I don't mind doing a clean install... But I'd like to understand what went wrong and where so that I can prevent it in the future...
Thanks in advance for your suggestions !