Amine2005,

Unfortunately, Dell no longer provides Windows 7. To get a disk you would need to search the internet for a Windows 7 pro disk.

You will have to find an OEM system builder or Dell OEM windows 7 pro dvd on ebay or amazon.

 If you install dot net 4.72 stand alone you might want to try the Dell recovery program with a 16 or 32 gig usb flash drive.  DOTNET IS REQUIRED BEFORE TRYING the utility.

https://www.dell.com/support/article/us/en/19/sln299044/how-to-download-and-use-the-dell-os-recovery-image-in-microsoft-windows?lang=en

 

For all Windows operating systems:

 Download the Microsoft .NET Framework 4.7.2 offline installer package now.

 

https://downloads.dell.com/FOLDER04813044M/1/Dell-USB-Recovery-Tool_JNDT2_WIN_2.1.2025.0_A00.EXE

 

Windows 7 Drivers are available as a cab file that you extract with 7zip.

https://www.7-zip.org/download.html

https://downloads.dell.com/FOLDER02816376M/1/7010-win7-A09-NWJXJ.CAB

DRIVER CAB PAGE

https://www.dell.com/support/article/us/en/04/sln312414

 

 

 

The windows anytime upgrade feature is discontinued.

Windows Anytime Upgrade is no longer available for online purchase

The free windows 10 upgrade is also discontinued.

The Windows 10 free upgrade through the Get Windows 10 (GWX) app ended on July 29, 2016.

 

 

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@Amine2005 wrote:
Hello, I just bought a Dell optiplex 7010, there is Windows 7 SP1 Family, and I want to put Windows 7 Pro Oa 64 bit I have the key, but I do not know where to download the operating system , In the microsoft site I entered the key but he told me to contact the manufacturer.

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If it is 64-bit to 64-bit, you could try Windows Anytime Upgrade feature.

https://www.intowindows.com/how-to-upgrade-windows-7-home-premium-to-professional-or-ultimate-edition/

 

 

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@Amine2005 wrote:
Hello, I just bought a Dell optiplex 7010, there is Windows 7 SP1 Family, and I want to put Windows 7 Pro Oa 64 bit I have the key, but I do not know where to download the operating system , 

---

I suggest to try a clean install of Windows-10 Pro 64bit.

When prompted for a key, use that one.

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@Tesla1856 wrote:

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@Amine2005 wrote:
Hello, I just bought a Dell optiplex 7010, there is Windows 7 SP1 Family, and I want to put Windows 7 Pro Oa 64 bit I have the key, but I do not know where to download the operating system , 

---

I suggest to try a clean install of Windows-10 Pro 64bit.

When prompted for a key, use that one.

---

This should still work if the OP is willing to switch to Windows 10.

 

 

 

.

You can Clean Install  and Activate Windows 10 Pro with your Dell Windows 7 Pro OEM Product Key (recommended). Also the Dell OS Recovery Tool works with my OptiPlex 7010 and lets me download a Dell Windows 7 Professional Reinstallation .iso. You should be able to do the same but bare in mind Windows 7 Reaches End of Extended Support in about a Year now (January 2020). More details on Downloading Windows 10 or 7 and clean installing are available here:

http://dellwindowsreinstallationguide.com/windows-oem-faqs-and-downloads/