Re: deleting old installs of windows question


The backup process isn't related to whether any remnants exist. I
would expect that although the old version of Windows is backed up,
that there are files used by Windows that are left or that copies of
are placed in the backup file and the originals left in place. You
don't lose programs in an upgrade and some of those programs may need
files such as dll files that the installation placed on the machine
and possibly in the Windows folder, I don't know. But someone with
sufficient technical knowledge will, I hope discuss this. Certainly,
as another example, the Windows 7 registry would have to be somehow
incorporated in Windows 10 because the programs that were installed
while Windows 7 was being used, would almost all have placed entries
in the registry that are necessary for the programs to run.

In short, while the old Windows is backed up, it isn't the case that
those old files are just removed by backing them up. If they were,
you wouldn't have an upgrade. You would have a completely clean
Windows 10 installation and you would have to reinstall all programs.

Someone with more technical knowledge can say if this statement is
correct, but what I think happens is that the old version of Windows
is backed up by copies being made of the files. Then the originals
are used or discarded in the upgrade.


On 3/28/20, Loy <loyrg2845@...> wrote:
With a proper windows 10 upgrade from windows, there should not be remnants

left. Windows put all the old Windows 7 files in the windows old file. If
there are programs on Windows that will not run under windows 10, windows
10 upgrade will delete them or ask you to remove them before upgrading.
----- Original Message -----
From: "Gene" <gsasner@...>
To: <>
Sent: Saturday, March 28, 2020 8:30 PM
Subject: Re: [TechTalk] deleting old installs of windows question

That's different from what is being discussed. That is for reverting
to the version of Windows you had. This is a question about remnants
of the other version of Windows being left on the machine as an
unwanted part of the new Windows version.


On 3/28/20, Loy <loyrg2845@...> wrote:
When you upgrade Windows 10, files from the previous version is stored in


file called Windows old, in case you wish to go back to previous version


after a period of time those files are deleted by Windows.
----- Original Message -----
From: "Gene" <gsasner@...>
To: <>
Sent: Saturday, March 28, 2020 6:35 PM
Subject: Re: [TechTalk] deleting old installs of windows question

My view is that if the upgrade is working well, don't worry about it.
If you are having problems, I doubt this kind of tinkering will help
and I doubt it can be reasonably done. How would you know what to
look for among all the possible remnants, if any?
Others may know something I don't, but it seems to me that if you are
satisfied, leave things alone. if not, you may have to have a clean
Windows 10. But you don't have to uninstall the upgrade and then
reinstall Windows. Others will, I hope, comment on this, but I
believe there is a reset option in Windows 10 that willl give you a
completely clean Windows 10 just by running the option.

On 3/28/20, Keith S <ks.steinbach03@...> wrote:
My computer originally came with windows 7 or 8, not sure which one.
the option to upgrade ton windows 10 and a friend did it for me.

I heard that an update of windows from an earlier version can still
traces of the old OS installed on it (broken files, files that direct
functions that are no longer there)

If this is true, where or how do I uninstall or remove these remnents?

Also, I saw on this list taht when you update jaws, the previous

still kept installed, incase you need to go back and use an older

the newer version of jaws is well, glitchy.

How would I go about removing the older versions?



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