This is purely based on experience, but it's what I would say about this issue. If I understand you correctly, for this program, performance is far better on 32 bit versions of XP, Vista, and Windows 7. Cfadisk Usb Driver X64 Canon. That in mind, I would say this. My experience is that the older architectures of the 64 bit versions of Windows, do seem to at times take a while to develop synergy with some programs (By the way, is there a 64 bit version of the program? If there is, are you using the 64 bit version)). Prefetch is the calibrator in Windows that makes run time adjustments, and I would say that it is probably going to pay less attention in the older versions of Windows to awkward performance from a particular program than it does in the newer versions, 8.1 and 10.

This is exacerbated by the fact that the systems equipped with the older OS are many times older and less powerful hardware. Jenna Jameson Flashpoint Rapidshare: Full Version Software. You are correct that the program could be part of the problem and perhaps not very well optimized for a 64 bit OS architecture. Based on 20 years of PC use, the best answer, if you must use one of the older versions of Windows, is to attempt to use the program for awhile on the 64 bit OS, whichever you choose. I would think that W7 would respond best and much better than the others over time.

If you can test the program for a few weeks, maybe you will see performance improve as prefetch 'learns' to respect more your use of and reliance on the program. Over time Windows can smooth out the rough spots in a program's performance that occur during run time. This is just my experience and not something reported by a lab. I do believe it is true, though.

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