This machine does not support Windows 11 upgrade.

 
 HP ProDesk 600 G1 Mini Business Desktop PC, Intel Quad Core i5-4590T up to 3.0GHz, 8GB DDR3, 256GB SSD, WiFi, BT4.0, VGA, DP, HDMI, DVI, Windows 10 Pro x64, English/Spanish/French (Renewed)