How can I prevent other users from installing programs on Windows 10
Press Windows+R Key to open command box
Type secpol.msc
Hit Enter Key
Double click or expand the “Application Control policies” folder
Double click on the “AppLocker”
Right click on the “Package app Rules”
Click on the “Create New Rule”
Click Next
Select Deny
Click on Select
Here enter a user name which you want to prevent to install software
if you don't remember user name then you can find it by clicking on Advanced
Click on Find Now
Here select user to prevent to install software
Click OK
Click OK
Click Next
Click Select
Here Select a App as  a reference
Click OK
Here you can set level of restriction
I have select Publisher
if You selecting use a packaged app installer as a reference
Click on the “Browser..” button
Go to a folder with an app that you wish to block and select it You can either select the app installer or select the installed app as a reference point
with my selection i am going ahead
Click Next then Create
That's it You can Log in with the user you set the restriction for and try installing an app to see if it worked
We have one more way to prevent user to install software
Press Windows+R Key
Type gpedit.msc then Hit Enter Key
Under the Computer Configurations > Administrative templates > navigate to Windows Components > Windows Installer
Click on Allow user control over Installs
Select Enabled (This Policy settings permits users to change installation options that typically are available on)