Nick, I got my XP 64bit SP2c dialed in according to your new tweak list. I got the 64bit version of O&O 8.5 and ran 2 space defrags and all was well. But when I tried to do an offline defrag, my computer crashed with a memory dump. I tried to reboot and couldn't-got that same memory dump error telling me something was corrupted in the registry. I've run the offline many times w/version 10 and XP 32bit, no issues ever. I had to reinstall the OS and, well, here I am.
Can I get by without the offline defrag? I know I need O&O and I don't want to give up XP x64.
Thanks for your help. -JIm