Source: Tom's Hardware UK – Keywords: Microsoft, Windows, Vista
Categories: Hardware
Driver Issues
The WoW64 subsystem is limited to the so-called user mode, i.e. applications launched by the user. When operating in kernel mode, all files have to be available in 64 bit format.
Since all device drivers require kernel-mode access, it is no longer possible to use 32 bit drivers even if they were written specifically for Windows Vista. Also, not all device drivers that Microsoft offers through Windows Update are available as 64 bit drivers. This also includes devices that you may be used to attaching quickly and simply by USB.
Especially the more exotic devices such as older scanners or COM-port adapters may encounter driver problems and may thus not be usable under Windows 64 bit.
In some cases, you may need device drivers even without using hardware. One such example would be applications that read data from the CPU or memory using the SM-Bus. While CPU-Z and Speedfan ran flawlessly, we had to disable driver signatures for CoreTemp even though it possesses a 64 bit driver component. Copy protection drivers used by older games may also cause problems. Games that carry the Games for Windows logo, on the other hand, are safe and will run smoothly.
- Previous page The Trouble with 32 bit Applications
- Next page Deactivating Hibernation
- Intel Skulltrail II - Overclocking and Power Consumption
- Intel Skulltrail I - Feeling the Power of 8 Cores
- Intel Skulltrail III - Eight against Four Performance Comparison
- DDR3-1333 Speed and Latency Shootout
- Samsung, Ridata SSDs Tested
- Finding The World's Best Hardware Prices: Shop Globally
- Comparing X38 Hardware, Part 1: DDR2 Motherboards
- Parallel Processing, Part 2: RAM and HDD
- DDR3-1800 RAM: The New Arms Race
- Dell's XPS 720 H2C Hot and Cool
- HP Pavilion Elite d5000t - opinions???
- I need help deciding which Dell to get
- Acer Aspire L320 minipc problems
- Gaming laptop Asus g2S vs Dell xps 1710
- Apple iMac Display Problems Reported
- Computer hangs when connecting to printer
- Vista and Microsoft Habu mouse.
- Convert DRM protected itunes music wma m4p to mp3 wav with Tuneclone
- Sound Card / Speakers for high end HTPC


I like the charts on the max supported ram per OS, but you need to show the user why they may need 8gb of ram, instead of "because you can" being the reason.
tsebbens' comment is pretty encouraging though. Encoding and gaming are two things I do quite often. But the fact that you can do both at the same time really a consequence of the 8GB or RAM or is it due to the processor (I'm guessing it's a quad?)?
My question is, where does readyboost fit in. I have vista home premium 32bit with a Q6600, and a 2 GB USB for ready boost. About to swap it with a 4 GB readyboost stick, will an 8 GB USB make a difference??
what more ram does is prevent Slow downs due to running low on ram so pageing happens
allso one other Point that is an small error about going past 4gb on an 32bit program it cant happen
if it gets correted an 32Bit program can only allocate 4gb of VM space even with 8gb of ram No page file would be used at all as the program can only use 4gb of space (in games i have only seen this happen on Supreme commander when there is an High amount of units on the map can use quite alot of ram or allacate alot of Vm space taht can be fixed by patching the game.exe file to make it support Large mode so it can use upto 4gb {default is norm only 2gb})
as an test on my pc readyboost makes my games judder when ever the flash drive is accessed