Sir,
I have done some R&D (Research & Destruction) to find out the following --
Windows Backup & Restore service does not exist in Win Vista Starter. See the link--
http://batcmd.com/windows/vista/services/sdrsvc/SDRDVC service is not available in Win Vista Starter.
Also, System restore is controlled by group policy. And in Win Vista Starter we have no access to group policy.
Also sfc fix and sfc zip for MSDTC.LOG I copied from the link you gave from sysnative forum .... it worked. So this issue is resolved. I have run Windows All in One Repairs in Safe Mode twice. But I am yet to check that System Restore works consistently. I will test it on Saturday / Sunday and get back to you on Monday Dec 5 2016. Hopefully everything will be tip top once again.
Bindesh.