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#11
Thanks gregrocker, done. I had CCleaner and Auslogics Disk Defrag installed (dif partition) and it proceded pretty fast. The most registry issues with ActiveX and File Extensions but I made back ups.
For Reg defragging I had Quicksys RegDefrag v2.9 (it is 64-bit) already installed (portable) and it reported a reduction from 109,136 KB to 87,620 KB (20%).
I have not yet deleted "C:\$INPLACE.~TR" and "C:\WINDOWS.~Q" but will do another disk defrag as soon as deleted.