here , on two computers
with 1607 (maybe matter that) , both up to date , 64bit english

only 0,1,2,3,4 values are OK.
values greater than 4 will put only 4 quick actions in action center
like default setting.

/edit
you must read the post #5

c

tip somehow related ,

if you change the registry key "Type" from the default dword value 1 to 0

Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\ActionCenter\Quick Actions\All\SystemSettings_Connections_Add_VPN]
"Type"=dword:00000000

will vanish [VPN] tile from : settings/system/notifications and action center quick actions tiles
AFTER a RESTART
but you will still have normal access to VPN via settings/networks & internet/VPN

/edit

for vanish [Project] tile
replace SystemSettings_Connections_Add_VPN with QuickActions_Launcher_DisplayTopology
same value for vanishing [2=showed/default => 0=vanished/hided]

for vanish [All settings] tile
replace SystemSettings_Connections_Add_VPN with QuickActions_Launcher_AllSettings
same value for vanishing [1=showed/default => 0=vanished]

and so on for any tile , just found and set the proper entry in registry

for undo , restore default values in registry and RESTART

c

Hello oneLess, :)

By default, only 4 quick actions will show at the bottom of the Action Center unless you click on "Expand" to see all of them.

I found a way to have ALL tiles expanded permanently on quick actions
with expand/collapse button/link vanished/hided



this is possible if :

1. the number you set to PinnedQuickActionSlotCount must be greater than or equal
with your [maximum number of quick action tiles] you have
a bigger number is better , because in future microsoft can add new quick action tiles via updates and those will be showed there
I set this value to 100=0x64

2. a restart its a must [a sign out/sign in its not enough]

3. before restart you must have the quick actions tiles already expanded
if tiles are in a collapsed state before restart
you will have after restart only first 4 tiles (1 row) , without expand button/link

MORE INFO

you still can disable/enable tiles in [settings/system/notifications and actions]
I keep only 8 tiles for desktops ( 2 full rows , like in the attached picture) and 12 tiles for notebooks ( 3 rows)
[1 more extra tile will eat a lot from action center notifications area]

or you can vanished them like I presented in post #2 about VPN tile and others ,
any tile can be vanished with the proper setting in registry
I use this way for contextual useless tiles
(VPN , Project , All settings is anyway so redundant if I need 1 more free space there)

with 0,1,2,3 and 4 values , works like Brink said
with values between 5 and ([maximum number of quick action tiles you have] -1)
the behavior is like the value is set to 4 (default) , explained by Brink above

you can anytime undo that by setting the default value 4 (restart its a must)

c

Thank you for the tip @oneLess. :)

Hello @SM03,

You can use the same registry setting in this tutorial to do so by entering the number for how many actions you have in the action center when expanded to show them all.