HP ProOne 600 G6 22 All-in-One PC Wall Plate

[NYAmetek]

i have 

HP ProOne 600 G6 22 All-in-One PC   and there are no screw holes in the back to use a wall plate . How do you hang it ?

[DGroves]

if HP has not designed the main AIO display unit for vesa mounting, it is usually possible to make such a mounting , however since this requires removing the rear back panel of the AIO it's not something that unskilled persons should do

you might want to find a local electronic repair shop and see if they are willing to remove the rear panel and drill the mounting holes in it and then attach the vesa plate

it may also be possible to modify the existing mounting mechanism to allow a 3rd party universal vesa  mounting plate to be attached

[SDH]

To the OP... the google might know:

ProOne 600 G6 22 All-in-One PC ( it really is 21.5") VESA Mount:  HP option part number 13L66AA

Search eBay for "13L66AA - HP ProOne G6 VESA Plate w/ PSH"   ... they have 5 available at this time for $19.99 USD each, free shipping in USA. Don't know where you live...

Also: https://www.hp.com/za-en/products/accessories/product-details/38000161

"PSH" = Power Supply Holder (see attached HP QuickSpecs below)

I believe you remove the original HP stand and replace it with the HP VESA mount analogous to the method shown in the HP video here, then attach that VESA-form-factor mount as you wish to whatever you wish:

https://youtu.be/gpWRFtVOiRk