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Upgrading a HP computer from Windows 7 to Windows 10

Prerequisites

Find the serial number of your computer, it may be useful later
A computer that has a Windows 10 license but was bought with Windows 7 pro installed (the Windows 7 downgrade option was selected when ordering the computer)
- If you are not sure if you have this option, you can call the HP Professional hotline and ask: +33.1.70.48.53.19
  - You can also check the warranty status on the Product Warranty Check page
A USB stick with 16+ Gb for downloading the installation files

Go to the HP Software and Driver Downloads (French) and then enter your computer name (you may have to click on Other HP Products first): e.g. 840 G3 (for a HP Elitebook 840 G3)
Expand the Software-Restore CD panel and download the Cloud Recovery Client
Execute the client installer
- If you execute this on another computer than the target computer, manually enter the serial number and model name of the target computer
- Select Microsoft Windows 10 64-bit Professional
- Select Operating System & Drivers and Western Europe and a server in Europe
- Select a USB drive with at least 16 Gb (the content of the drive will be erased!) and start the download