No longer update apps or use safari I recently migrated my macbook 12" to a macbook pro (touchbar). I used the migration assistant to transfer a backup from the old mac to the new one. At first all was successful apart from a slight issue with the incompatible OS version between the two machines. (I had to update before migrating)

I am running Sierra(10.12.5 (16F73)) on the new machine. I am now facing a number of issues with the machine, I would guess its a permission thing. I think but cannot be certain that vmware fusion has something to do with the issue because it was the last program I tried to install from the old backup before seeing issues. (I had to kill the installation)


safari opens and appears to load a page, but just sits there - no matter what the url is. Chrome and Firefox work perfectly well and other programs do not have an issue getting an internet connection. 
mac store updates do not work, when I click update on an app, I see: "We could not complete your update. Unknown error"


I noticed that the owner of my application (located at /Library/*) is as follows:

drwxr-xr-x@   3 root          wheel    102 30 Jun  2016 Safari.app


Should root own these applications? 
How can I debug this issue with safari and the app store updates? 
Any thoughts what could cause behaviour like this? 


So far, I have tried, neither worked:


Repairing disk permissions using the 'first aid' tool in disk utility.
Reinstall OS (restart, cmd+r, Reinstall OS)


Thanks
Thank you @IconDaemon - you comment solved it.

Step 1: Follow this link and run the terminal command.

Step 2: Restart the Mac in safe mode.