• Microsoft Windows 10 Pro to:
  - Microsoft Windows 8.1 Pro
  - Microsoft Windows 7 Professional

Note:
For select systems, a Microsoft Windows 8.1 Pro or Windows 7 Professional recovery DVD's (RDVD's) set can be purchased from Lenovo. For more information, contact a Lenovo Support Center.

* This only applies to the machine which is Win 10 downgrade program.

• Microsoft Windows 10 Home

• Microsoft Windows 8/8.1 Pro to:
  - Microsoft Windows 7 Professional
  - Microsoft Windows Vista Business

Note:
1. For select systems, a Microsoft Windows 7 or Windows Vista recovery DVD's (RDVD's) set can be purchased from Lenovo. For more information, contact a Lenovo Support Center.

2. Microsoft Windows 8/8.1 Pro cannot be downgraded to Microsoft Windows XP.

* This only applies to the machine which is Win 8/8.1 downgrade program.

• Microsoft Windows 8/8.1 Standard