![background image](http://html.mh-extra.com/html/hp/probook-645-g4/probook-645-g4_maintenance-and-service-manual_2173983009.webp)
Using Windows tools ........................................................................................................................................... 91
Restore and recovery ........................................................................................................................................... 92
What you need to know before you get started ............................................................. 92
Using the HP Recovery partition (select products only) ................................................. 93
Using HP Recovery media to recover .............................................................................. 93
Changing the computer boot order ................................................................................ 94
Removing the HP Recovery partition (select products only) ......................................... 95
Computer specifications ...................................................................................................................................... 96
35.6-cm (14.0-in) display specifications ............................................................................................................. 97
M.2 PCIe solid-state drive specifications ............................................................................................................ 98
M.2 SATA solid-state drive specifications ............................................................................................................ 99
Hard drive specifications ................................................................................................................................... 100
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