My friend asked me to repair his PC. By mistake I deleted his user account, and when I start up the PC, I am asked for user and password by Pointsec. When I use the old user name and password, and then click OK, the PC starts up, but when almost finished, I'll get asked again, and now the user name and password is not accepted. The disk is NTFS. Can I create a new user account from DOS? Or what can I do?