Windows upgrade

Sam Habiel
Wed Jun 13 06:12:00 GMT 2018

I use Cygwin 32-bit all the time on Windows 10 x64.


On Tue, Jun 12, 2018 at 7:31 PM Alejandro Benitez <> wrote:

> Hi,
> I have a 32 bit cygwin installation of 8 years of age in an amd64 PC with
> 2 GB of RAM with Windows 10. So far it's been so good. I never had the need
> to use a 64 bit Windows, but recently 64 bit has become mainstream and I
> also started having low memory issues, so I upgraded to 4 GB of RAM. The
> thing is 32 bit Windows has issues with the whole 4 GB of RAM therefore I
> have quite less available, so I decided I will be switching to 64 bit
> Windows 10 via a clean install (yuk!) when I am able.
> I'll be following the steps outlined in this post or a similar one:
> It's somehow clear I thankfully won't need to upgrade to cygwin64 until
> later, I mean it seems I'll be able to still use my 32 bit cygwin after I
> upgrade to 64 bit Windows 10, I just don't know what I'll need to tweak /
> migrate so that the new Windows installation installed on top of the same
> drive that currently holds the 32 bit cygwin knows it's there. I'm betting
> some registry entries and environment variables. Does anyone know these
> tweaks for certain? I need cygwin to be fully functional, I mean setup.exe
> needs to be able to install packages, otherwise it won't be of much use.
> I might also be wrong and need to install cygwin64 as I upgrade Windows.
> Fingers are crossed.
> Thanks in advance,
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