Can't do a Windows 7 no-reformat, nondestructive reinstall

Hi all,

I need some Magic.
I am trying to do a Windows 7 no-reformat, nondestructive reinstall. I have my original Win7 Sp1 (64BIT) installation DVD, my original 25-character product key, and a current backup.

When I run the setup.exe, the blue "Install Now" window appears. I click install now and another window opens saying, "Setup is copying temporary files". The disk runs for a while and then
goes back to the "Install Now" screen. And that's it. If I click "Install Now" again, it goes back to the installing files screen again. This repeats over and over in a loop.

I have tried it with my Firewall and anti-virus programs turned off. Same thing.
I made an ISO file from the disk and used Rufus to create a bootable Win7 USB drive and tried to do the install from that but the same thing happened.

Can you help?

Paula

Operating System:
OS: windows 7 home premium SP1 x64
CPU:
Intel Core 2 Duo E6320 @ 1.86GHz
Conroe 65nm Technology
RAM:
8 GB DDR2
Motherboard:
Intel Corporation DG965WH (J1PR)
Graphics:
DELL E198WFP (1440x900@75Hz)
Intel G965 Express Chipset Family (Intel)
Storage:
931GB Western Digital WDC WD1002FAEX-00Y9A0 (SATA)
232GB Western Digital WDC WD2500JD-00HBB0 (SATA)
Optical Drives:
SONY DVD RW AW-Q170A SCSI CD-ROM Device
DVDRW IDE 16X SCSI CD-ROM Device
Audio:
High Definition Audio Device

I have tried it with my Firewall and anti-virus programs turned off. Same thing.

That sounds to me like you are trying to do it while booted to Win7 instead of booting to the disc. Since it's a full version it probably can't happen, have to install when booted to the disc and same for the USB.

I read Brinks's tutorial and tried to follow it. That's where I got the info.

My problems started a while back when I couldn't install windows updates for .net framework and IE 11. Then I there was a Microsoft Security Essential program update that wouldn't install. I read everything I could find. Tried various Microsoft Fixit
prgrams...those did nothing or wouldn't install at all. I think the problem is with Windows installer itself because I don't have any trouble installing other software.

This might help the Windows Installer problem:
https://msdn.microsoft.com/en-us/lib...or=-2147217396

Thanks Berton. I looked all over the place and can't find any way to download Windows Installer 5.0. Am I missing something?

Is this what you need?