Windows Legacy OS forum

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Installing programs - Insufficient space on C:\

by SR76 / December 3, 2007 1:02 AM PST


Recently, I have Windows XP installed on F:\ in my computer. Recently, I tried installing some software which by default tries to install on C:\ which does not exist on my computer. The software complains that there is insufficient space on C:\ and fails to install. There is no option to change the install path.

Is there any alternative to changing my drive assignment from F:\ to C:\ (which would imply reinstalling all of windows and other software) ?

I was thinking - what about using "subst C:\ "F:\" and mapping C:\ to F:\. Will this work for install purposes ?


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SUBST = try it.
by R. Proffitt Forum moderator / December 3, 2007 1:58 AM PST

I doubt it will help in the long run. Sadly this is an testament to poorly written installers. But it's a well known issue (Windows not on C:) that you can find lots of posts about relettering drives but the basic issue is that the REGISTRY is chock full of entries pointing to NOT C: that you need to fix if you change the drive letter. I'll stop here since I would be duplicating lots of web content.

Fix? Call the company that made the software and ask for a patch or fix.


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Subst in autoexec.bat
by SR76 / December 3, 2007 2:17 AM PST
In reply to: SUBST = try it.

What if I put the subst command in autoexec.bat ? Wont that be a permanent fix ?

I already tried contacting the vendor and the idiots came back with a "Sorry. You need to move windows to c:\" rather than just fixing one line in their code.

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Since autoexec.bat is not used. No.
by R. Proffitt Forum moderator / December 3, 2007 2:26 AM PST
In reply to: Subst in autoexec.bat

That won't work. I think you are thinking about the days of DOS and Windows 98...

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You could move some of the things you ...
by Edward ODaniel / December 3, 2007 4:06 AM PST

already installed on the C: drive to make room which might require re-installing to the different partition although COA2 (Change of Address utility available at,4149,9505,00.asp ) would most likely do the job.

Does this unknown application allow you to do a CUSTOM installation?

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