Default [Q] Sony xperia sp connect and work with the program Backup TA

If one can help, I have not slept the whole night .. I would be very grateful, Thanks!
I looked at the video "Backup TA partition (DRM keys)" on Xperia the Backup-TA-9:11, unpacked to C: partition connected phone (installed AdbDriverInstaller) phone is connected .. Windows XP, SP3. My phone I got from a friend as a gift, it's locked (Austria) Sony Xperia sp, model LT26i, Android 4.1.2
I can not do a backup phone, I get this message:
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