Windows 10: Windows cannot access the specified device, path, or file

Hello.

Just installed Win10.

I'm having trouble both opening and renaming/changing some files. I had no trouble before on win8.
I am administrator with elevated previliges. I changed UAC level to the lowest.

I keep getting this error:
"Windows cannot access the specified device, path, or file. You may not have the appropriate permissions to access the item"

any ideas?
thanks

:)

 

"Windows cannot access the specified device, path, or file. You may not have the appropriate permissions to access them."

I tried to open pre-existing and new files, and I get the same message. So I did as you recommended, uninstall the Reader and re-install it. (I also had Adobe Professional 8 and uninstalled it as well. I did not re-install this software.)
I still receive the same message. Would you happen to know other options I can pursue to resolve this issue?

 

"Windows cannot access the specified device, path, or file. You may not have the appropriate permissions to access the item."

Open Start

Type: cmd

Right click CMD

Click Run as administrator

At the command prompt, type:

net user administrator /active:yes

Hit Enter

Close command prompt, restart, then try signing into the Administrator account.

Try accessing it again.