Hello,
I have a PC in my office running Windows 10 Pro Version 1803.
Whenever I try to copy anything from that PC to a pen drive, hard disk, anything, I just get an error saying "You need permission to perform this action"
Even if I check permissions of the files as well as the pen drive I am trying to copy to, the permissions say that "Everyone" has "Full control"
Why is this happening?
Even group policy has not blocked external storage devices.
Is there some other setting I am missing?
EDIT:
I have already watch all those YouTube videos telling me to take ownership of the file / pen drive. It has not work.
I still get the error message saying "You need permission to perform this action".
Unable to copy anything to external storage devices (No permission) 
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New 1 Week Ago #1
Unable to copy anything to external storage devices (No permission)
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New 1 Week Ago #2
Hi, what happens in Safe Mode? Same or not?
Are you logged in as admin or as a standard user?
Do you receive the same message if you copy a file back onto the same disk internal to your PC?
From what path are you trying to copy a file? (What folder?)
A basic question is whether the message refers to the source or the destination.
Basic ideas- please check there's nothing you've not tried:
FIX: You need permission to perform this action - Appuals.com
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New 1 Week Ago #3
Are the drives NTFS or fat32 if it's fat it doesn't have permission so it's not that if it's NTFS check any folders above as permission may be coming from above
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New 1 Week Ago #4
Who has the owner permission for the external drive?
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New 1 Week Ago #5
Problem solved guys, it was the antivirus actually.
Someone activated USB write protection from the antivirus. -_-
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