Windows 10: Accessing folders on external HDD from new Windows 11 laptop

My old Windows 10 Pro laptop is aging, but still usable. I've just bought a new one Windows 11 Pro to supplement it, but not replace it just yet.Most of the user files are on an external drive. [It's actually a RaidSonic RAID system, now accessed via USB3, though previously via eSATA.] There are 2 users; each user owns their own files and allows access to the other user for some folders but not others. We've done this by granting access to selected folders through Properties/Security in File Explorer. [I'm not a Windows expert and don't really remember the details, so I hope that's enough to

:)

 

Access to files on external HDD

I recently bought a new Windows 10 computer. I already have an external HDD with my photos on. To migrate my other data (e.g. Office docs etc) from the C: drive on my old XP computer I copied the relevant folders to the external HDD. I intend to copy this
data to an internal HDD on my new computer, but before doing so I am deleting files that I no longer require. I am signed in with an administrator account on my new computer, but every time I try to delete or move a file or folder on the external HDD, a dialog
box pops up asking for administrator permission. Clicking 'Yes' enables me to delete or move the file/folder, but this is clearly laborious. Inspecting the properties of files/folders on the external HDD, I see that every file and folder has a blue/yellow
shield against Rename and Delete.

Is there a way that that I can simply update the permissions on all files/folders on the external HDD to give full access to my administrator account, so that I can move/delete files without needing to give permission every time.

Note - At the end of the day I want to move the Office docs etc to an internal HDD on my new computer but leave the photos on the external HDD. But I want my administrator account to have full access to both types of file.

 

External HDD

I have an older Seagate 1 TB external HDD, but my new Lenovo laptop with Windows 10 won't let me open it. It shows up under my computer, but doesn't allow me access; it reads "You don't currently have permission to access this folder". When I click on
"continue", it prompts me with "You have been denied permission to access this folder. To gain access to this folder you will need to use the
security tab". I click on the link, but there isn't any setting I can find to allow me access to open my own HDD files.

 

No access to external HDD

Just over a week ago I posted the below problem of inability to access my external HDD. I had one response from someone who asked me to send a mailshot of my Disk Management. This failed on my first attempt but was successful on the second. Despite
sending him/her a reminder I have heard nothing further. CAN SOMEONE PLEASE SEND A POSSIBLE SOLUTION AS I CANNOT DO ANY BACKUPS!

I have Windows 10 Pro Version 1903 and use Macrium Reflect for my scheduled backups

to an external HDD housed in a caddy. Recently the backups have failed four times

due to an error "the semaphore timeout period has expired". Despite trying various

suggestions to fix from Google - no luck! Now I have no access to my external HDD

as the drive cannot be seen in ‎File Explorer. Your help for a fix will be greatly

appreciated.