Reinstall windows 8.1 on OEM All In One pc

[fooball]

I recently purchased the Lenovo C560 All in One PC, and wanted to replace the 1TB 3.5" HDD it came with, with a 240GB SSD. How can I reinstall the windows 8.1 onto the new SSD?

Note: The All in One only has 1x3.5" bay, and is more like a laptop than an desktop.

All help is appreciated!!!

 

[USAFRet]

You need to create the Recovery disk set via whatever functionality Lenovo gives you.

A lot of SSD's come with a 3.5"-2.5" adapter, or you can buy one.

 

[fooball]

Hi,
I backed-up the computer to a portable hard drive using the lenovo onekey recovery and installed the ssd into the all-in-one, but when I try to press f2 at startup to go to the recovery screen (manual says that), it doesn't work (worked before the drive swap). It seems that it needs the service partition (right now on the 3.5" hdd) to be able to use the recovery software. What should I do?
Thanks