You will need a different ISO for each model of PC however you don't need different ISO's for reach Service tag, so download it once and you will be all set. Then scroll down to the OS section of the drivers and software page and you can download a Dell OEM ISO providing you still have those Service Tags under support. If you bought the Windows 10 license as OEM with the PC then go to the Dell support page and enter the Service Tag and select Windows 10 from the Operating System type. I then tried a 'reset' install using the Dell media- this time it saw the disk, but the reset failed. I used the Microsoft Windows 10 DVD (created with Microsoft's Win 10 media creation tool) and installed Win 10. I took an older dell machine, tried installing Dell from the Windows 10 recovery media, but it couldn't even find a drive. I don't know if this means that I can only do a destructive upgrade from Win 7. Dell installs win 7 using 'legacy' boot and 'MBR' partitions.

On this machine I didn't want to loose files so I didn't try the option to replace everything.ĭell installs Win 10 using UEFI boot and I think GPT partitions. I tried doing a 'reset' with keep files on a laptop, and it saw my existing Win 7 image as a target, but something failed and it quit before making any changes. You can boot from the Dell DVD or USB, select troubleshoot, and then 'reset my PC.' Reset my PC gives you the options to preserve your data files (but not applications) or wipe everything. Unlike with Win 7 media from Dell, or a Windows 10 DVD from Microsoft, the Dell recovery only gives you a repair option, not a clean install option. (You can also download the ISO from Dell as well as as tool to create a Win 10 Recover bootable USB key.) with downgrade rights.) Dell will provide a Windows 10 Pro recovery DVD.

My company has purchased several desktops and laptops from Dell with Windows 10 Pro licensed but Windows 7 Pro installed by Dell (i.e.

Dell media creation tool