Wiped hard drive with DNUKE. Win7 won't install. Error code: 0x8007001

Ok good . Now the PC with the issue HP Pavilion Slimline s5310f PC could run both versions . Use the Product Key on the the PC case for either of the two versions . One key per version .

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Your PC comes with 4GB of RAM . You should install the x64-bit version of Windows 7 SP1 .
To get your 32-bit OS to be able to create a x64-bit USB installation drive do the workaround.

Copy the bootsect file from C:\Windows\Boot from your windows 7 32-bit OS and paste it to this folder C:\Users\username\AppData\Local\Apps\Windows 7 USB DVD Download Tool then start the Windows 7 USB DVD Download Tool

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You could use UltraISO to create a bootable USB drive as well

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install application onto the 32-bit OS

click on the continue to try button ( image below )


In the home screen, click File > Open option to browse to your Windows 7 ISO file

Next, in the home screen of UltraISO, click on Bootable menu and then click Write Disk Image option to launch Write Disk Image dialog box.

In the Write Disk Image dialog, select the Disk Drive as your USB flash drive, select the write method as USB-HDD before hitting the Format button. It will then launch Format Removable Disk dialog, where you need to simply click Start button to begin formatting the flash drive. Please backup all data from the USB device before hitting the Format button.

Once the format in done, click Write button and then click Yes for the warning prompt to start the process. When the writing is finished, you will see Burn Successful message event list. Close UltraISO software and connect your USB to a machine to start installing Windows.