How to install apk in 2nd user of android 5.0 without playstore So, android 5.0.2 doesn't allow side loading of apks for 2nd user (irrespective of whether it is guest or standard user). "Unknown Sources" is disabled and is uncheckable. And I use a pure Cyanogen Mod 12 (android 5.0.2) without any Google apps. So, there is no Play Store app.

But I have root access.

As shown in the pics, Unknown Sources is Uncheckable and installation is blocked.

(Click image to enlarge)




With this situation, how can i install apks on to the 2nd user account??

EDIT: 

It seems Google intentionally (in the name of security) blocked sideloading apks for 2nd user in android 5.0.2. There is a bug report here. And sideloading was reenabled in android 5.1. 

I will post how to sideload apks on lolipop 2nd user using adb. If this can be done without adb please post.
Using the command,

adb install -r whatever.apk


will install the application in 2nd user of android 5.0.2 .

Source