Im using NOD32 as the main AV. and few other installed AV removal tools and sometimes recovery boot cds of many other avs to check if nod32 has missed something.
Thanks a lot for updating me with that important thing Boggin, that explains a lot... and i admit i actually thought about that thing before i opened the thread and that it might be the main reason, because i forgot to mention that i installed that tweaking software in 2 of my other pcs, and at 1 laptop [laptop with windows 8 and pcs with XP/7 32 bit.] and it did finish the repair in all of them! [i unmarked some of the options, those which i was not interested to change in the "repair" settings] and it really improved the performance of my pcs a bit.
I have all the versions of windows o.s in original discs since windows 95 till windows 10. Now the the main reason that im still using WINDOWS XP x64 as my main o.s, is because i get the best 3D performance compare to any other operating system i tested before, since Vista! I can feel the real difference not only by the tests results, but even by playing games and my personal feeling with the higher fps which is much higher and less lag in xp x64, even that it has only Directx 9/10 and not 11 like windows 7 and above.
I tested the 3d performance with a common and reliable software called "Passmark performance test" and also with "3D mark" and i get
35-40% better result with xp x64 compare to any other o.s, at exactly the same pc and same settings in the Nvidia control panel.
I sent Microsoft a mail about that issue few years ago before they created and released windows 10, a representative of them was very nice and told me that they will take care of that thing, and he will elevate it to the admins above him, but nothing was done since then, and there was no any improvement at windows 10, and no reply from them, Microsoft ignored my second mail totally [i guess because that they have no answer and they know very well that they cant change and reverse back such a thing] and of course cause they simply dont even account me as a simple citizen who sends them emails about something that is truth 100%.
Most of the people dont pay attention to that thing [like they didnt feel the difference between 60hz and 75hz supported screen refresh rate] and they are even not aware, but this thing is pretty annoying a gamer who likes to play a lot of pc games, and i do feel the big difference when playing games, and i cant tolerate and compromise on that thing. Basically the 3D performance's core and kernel of all Ms operating systems since Windows vista hasn't changed almost at all and its almost the same since 2007 and its still bad, according to the results i get with the tests, and for sure i can also feel it by my personal feeling in any game i play and thats enough for me. for example: characters run faster, much less lag of mouse movement, vertical sync enabled is much better with no tearing and much more frames per second.
THE MAIN PROBLEM IS THAT XP X64 IS NOT SUPPORTED ANYMORE BY THE NEWEST PC GAMES OUT ON THE MARKET RECENTLY, ALTHOUGH ITS THE BEST PERFORMANCE OPERATING SYSTEM TO PLAY GAMES WITH!
You are even welcome to do so and test it by yourself, to see that im not bs. Simply install at the exact same pc, windows Xp x64, 7 ,8, 10 [64 bit versions] on a separate hard drives, install Nvidia/Ati drivers and set it exactly at the same settings on all the operating systems, and see the result by yourself.
I tested all the Microsoft operating systems, installed each one at a separate different hard drive on the exact same pc with: CORE I7
[email protected], 16GB CORSAIR 1600MHZ, NVIDIA DOUBLE GTX 680, CORSAIR 1200W PSU.