Windows 10 Insider Preview OS Build 15007.1000: Couldn't compute FAST_CWD pointer

Corinna Vinschen
Tue Jan 17 12:13:00 GMT 2017

On Jan 17 03:12, Jim Reisert AD1C wrote:
> I just upgraded my Windows 10 Home 64-bit installation to the latest
> Windows Insider preview version:
>     Version: 1607
>     OS Build:  15007.1000
> I'm now getting this warning from Cygwin, but only in a CMD window
> (not XWin).  It doesn't seem to affect anything negatively.
> cygcheck.out attached (I got the FAST_CWD warning three times during
> the generation of the file):
> C:\Users\jjrei>uname -a
> Cygwin WARNING:
>   Couldn't compute FAST_CWD pointer.  This typically occurs if you're using
>   an older Cygwin version on a newer Windows.  Please update to the latest
>   available Cygwin version from  If the problem persists,
>   please see

Try the latest developer snapshot from


Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Maintainer                 cygwin AT cygwin DOT com
Red Hat
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