Hi, Martin.
Going from Win7 Professional to Win7 Ultimate is easy. Going from 32-bit to
64-bit (or vice versa) is not as easy.
If your computer hardware (CPU, especially) is 32-bit, then there is no way
to install any 64-bit Windows on it.
If it is 64-bit hardware with 32-bit Windows installed on it, then you can
transition to 64-bit Windows - but it's not a simple "upgrade". You can't
just boot into 32-bit Windows, then insert the 64-bit DVD and run Setup.
You must BOOT from the 64-bit DVD so that the 64-bit infrastructure will be
in place to install 64-bit Win7.
You can ADD 64-bit Windows to create a dual-boot system (a second license is
required), or you can do a "custom install" (a "clean install"), which will
delete 32-bit Windows and install 64-bit Windows in its place. A reformat
of the Windows volume is not strictly required, but is often recommended.
WET (Windows Easy Transfer) is included on the DVD and it will make the job
easier - but not painless. It will help you preserve all your data and some
of your tweaks. But almost all your applications - even 32-bit apps - will
need to be re-installed so that their Setup programs can make the proper
entries in the Win7 x64 Registry; simply having their files on your disk
will not be enough. Some apps do not need to be "installed", of course; you
can run these from your new Windows by simply browsing to them and clicking,
as before. Run WET before the transition; it will "inventory" your apps and
other files and you can store the output on a device that will be available
later, such as an external HDD. After Win7 x64 is installed, run WET again
to retrieve all those files This won't reinstall your apps, but it will
make your job easier.
IF all your data is on a separate disk or partition which will not be
reformatted, then you can simply point your re-installed apps to that data
again after the transition. You won't even need WET for this.
RC
--
R. C. White, CPA
San Marcos, TX
Microsoft Windows MVP (2002-2010)
Windows Live Mail 2011 (Build 15.4.3538.0513) in Win7 Ultimate x64 SP1
wrote in message news:...
Hi
anyone know if it Is possibe to load win7 Ultimate 64 bit on a
Professional 32 bit system without loosing anything ? If so how?
or would it be better to do a fresh install?
I hate having to re-install loads of software and there is always
something gets mised in the back up
--
Martin
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