I really appreciate the responses so far, thank you. The reason for my initial question and concern, was that during the set up process, I was asked to ‘name’ the desk top and assign a password. It was a few moments later that I was asked if I had a live account, wish I have and added it and its password. It seems that once I had signed in with my Live account, that took over the control and access of the PC. As I also have a Windows phone which is synced to my Facebook, emails and other apps, I am very reluctant to offer that password to anyone, including the suppliers technicians. I would have thought that to gain access to check all devices pre-installed be it the OME platform or any drivers, windows so have recognised the need for a secondary means of checking the system, even by doing so in safe mode. If I had known that the Live account was going to be the only means of access when it was sent away, I would have deleted the account from that machine beforehand. Changing the password from my phone, would lock up the PC again, so the password for any windows 8 based is effectively stored in the ‘cloud’ and not actually on the PC. Previous versions of windows would have allowed me to assign a password to protect my email and other applications separately from the PC itself, but I guess having the PC for less than 24 hours before it was sent back did not allow me time to figure out any other method of protecting my details. Maybe I am being overly cautious not wanting everyone to have access to my details, but as I am self employed and rely on the PC for work (AutoCAD user) the importance of a fully protected PC is paramount. That would appear not to be the case with my limited experience so far.