You don't currently have permission to access this folder

So you mount an external disk, try to go to the directory where you need to go and Windows tells you that you don't have the permission to do that.
I never understood the philosophy of Windows security, probably because I'm used to Linux. I don't want to understand it anyway unless it gets in my way.
What I tried successfully is:

1. Open the folder's Properties.
2. Go to Security and click Advanced.
3. Change Owner: Enter the object name to select and do Check Names.
4. Check Replace owner on subcontainer and objects.
5. Ignore the Windows security warning.
6. You're done!

Restoring Audio Service in Windows 10

Today I couldn't listen to anything or change the volume or do anything related to audio.
Someone suggested to:

> net stop audiosrv
> net stop AudioEndpointBuilder
> net start audiosrv
> net start AudioEndpointBuilder

After 5 minutes I'm still trying to see if the first command will ever end.

I'll never find out. I finally had to reboot. I tried the put-it-to-sleep solution but it went into eternal sleep.
That's always been Windows' solution: "reboot without  saving your changes"!