Re: 64 bit (32 bit compatible) processors.
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Derek wrote:
> Recently I purchased a new laptop computer. I am fairly computer
> literate but do not have a good understanding for the complexities of
> 32/64 bit architecture. No mention/warning was made by the vendor
> that the processor (Intel Pentium M processor 760) was 64 bit
> (compatible 32 bit) or the implications.
There should be few implications when you are using the processor as a 32
bit processor.
> The first programme I installed caused the computer to become
> unstable and Blue Screened on Shutdown and Bootup. On each bootup
> the HD was scanned which revealed additional corrupt/truncated files
> (fortunately I am able to recover to Factory Settings).
> The programme vendors recommended that I change a statement in the
> boot.ini file from "Microsoft Windows XP Home Edition
> /noexecute=optin" to read "noexecute=AlwaysOff", this amends the Data
> Execution Prevention (DEP). This stopped the instability but of
> course slightly reduces the security put in place by SP2.
Yes. Shocking advice considering that DEP compatible processors and SP2 have
been out for a while now.
> However I am still having problems installing my ISS's "BlackICE PC
> Protector" and now I have noticed a minor problem with Sunbelt's
> "CounterSpy" (sister programme to MS AntiSpyware). The computer
> Manufacturer's Help Desk (Acer) explained that I will be a guinea pig
> and that things will improve with the arrival of Microsoft's new
> operating system and programmes written for 64 bit operation, no
> mention of a free upgrade when the time comes.
If this is what they told you then ACER are messing you around, either by
giving you bad advice or by selling you bad hardware. Windows XP Home is a
32 bit operating system. With this installed on your computer, your computer
*is* a 32bit system. Your issues are not related to 64 bit compatability
issues.
> So anyone thinking of replacing their old computers, beware the
> architecture of the processor in the new machine.
I think you've been given bad advice that has led you to an erroneous
conclusion. I'd agree that 64 bit desktop computing isn't quite "there" yet,
but in the situation you describe, it is a total irrelevancy because you are
not using this computer in that way.
--
--
Rob Moir, MS MVP
Blog Site - http://www.robertmoir.com
Virtual PC 2004 FAQ - http://www.robertmoir.co.uk/win/VirtualPC2004FAQ.html
I'm always surprised at "professionals" who STILL have to be asked "Have you
checked (event viewer / syslog)".
.
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