Cant access one folder on cloned Win 10 HDD

I successfully created a cloned HDD from my Dell XPS-15 laptop. To confirm proper cloning, I tried to view the clone's contents by connecting it to another PC (Win7 laptop) via USB. Most of the folders were readily viewable, but one was not. When I tried to access this folder I got a 'Location Not Available' dialog that said the file could not be accessed by the system.
After some fumbling around and some web searches, I found that the only difference between the folders I could open and the one that I could not was that the 'good' folders all had a permissions entry that was a long series of digits ending in '-1003' and the 'bad' folder had a 'Permissions Entry' with the same long series of digits, but ending in '-1001' instead of '-1003'.
I tried changing the '-1001' to '-1003', but there seems to be no way to do that. I tried removing this 'Permissions Entry', but got an error message saying it couldn't be removed because it was inheriting permissions from a parent object. I eventually figured out how to break the inheritance chain and remove the object, but now I can't figure out how to ADD the correct one. When I try to add a new permissions entry to the 'bad' folder, I get and error message "An object named [my long number] cannot be found. check the selected object....
Any ideas what is going on herre? I have been doing clone backups for years on my Win7 lapotp with no trouble, but Win10 seems to be making it all but impossible to do the same thing - help!!
TIA,
Frank
After some fumbling around and some web searches, I found that the only difference between the folders I could open and the one that I could not was that the 'good' folders all had a permissions entry that was a long series of digits ending in '-1003' and the 'bad' folder had a 'Permissions Entry' with the same long series of digits, but ending in '-1001' instead of '-1003'.
I tried changing the '-1001' to '-1003', but there seems to be no way to do that. I tried removing this 'Permissions Entry', but got an error message saying it couldn't be removed because it was inheriting permissions from a parent object. I eventually figured out how to break the inheritance chain and remove the object, but now I can't figure out how to ADD the correct one. When I try to add a new permissions entry to the 'bad' folder, I get and error message "An object named [my long number] cannot be found. check the selected object....
Any ideas what is going on herre? I have been doing clone backups for years on my Win7 lapotp with no trouble, but Win10 seems to be making it all but impossible to do the same thing - help!!
TIA,
Frank