Windows 10: Cannot access data on second hard disk former system drive

First a little bit of context.


I'm reinstalling my DIY desktop PC from scratch, after failing to clone the system SSHD drive to a new Samsung 970 PRO NVMe SSD with their Data Migration app a first, I've used this a number of times without a glitch.


Fresh installing Windows 10 onto the SSD worked like a charm, and after doing that I reconnected the SSHD drive that previously was the system/only drive in the system.


Here's what Disk Management shows me:





For some reason because it's an "EFI System Partition" Windows doesn't assign a drive letter to the former C partition.



I can assign a drive letter manually with DISKPART, but this doesn't survive a reboot.


Next to that, when the partition is mounted that way, I can't access data on it:





How do I fix the drive letter and "access denied" issues?

:)

 

Hard Drive Data Recovery

got a laptop pata hard drive that makes a slight constant clicking noise. hard drive is more than likely dead/dying right... i can see that partitions of the hard drive in disk management and i can see the partitions in my computer but i can't get to any of the data.

any suggestions?

 

Lost data from hard drive, what to do now?

Well, I'm sorry to hear that it's a WD My Passport that failed on you, @tomhenry ! *Frown
I'd recommend you to try using a different USB cable with it and see if that will help your system to detect it without it disconnecting.
I'd also suggest you to go to Disk Management and see how the drive is listed there. It won't hurt to check up on the health and SMART status of the HDD by running the QUICK and EXTENDED tests from the WD's Data LifeGuard Diagnostics. Here's a link to the available software: http://products.wdc.com/support/kb.ashx?id=11ZOpD

Give these troubleshooting steps a try and keep us posted with the results!
SuperSoph_WD

 

Windows10 - Black Screen only when second hard drive plugged in

Hi, Shaun.

Thank you for posting your query in Microsoft Community.

I understand your concern, and we in Community will try to help you in the best possible way.

Before I can provide assistance, I would like you to answer the questions stated below:

• • Did you get any Error message or Error code when you tried to connect to the second HDD?
  • Have you tried to plug the HDD into other computer and check if the same issue arises?
  • Did you try any troubleshooting step to resolve the issue?

If you can access the drive through your computer or some other system, I suggest that you try the steps mentioned below and check if issue persist.

Step 1: With the HDD connected to the system log into Safe Mode and check if the issue arises there as well.

Step 2: If there are any bad sectors on the hard disk then Windows cannot read those files. So in order to find if there are any bad sectors on the hard disk, I suggest you to run Check
Disk Using check disk command for any errors on hard disk and check if it helps.

Warning: Microsoft does not recommend interrupting the CHKDSK process. Microsoft does not guarantee the integrity of the disk if the CHKDSK program is interrupted .For safety
you can back up your data before using the check disk command.

Use the check disk commands as follows:

a. Press Windows Key + X, then choose Command prompt (Admin) from the context menu.

b. In search window type 'cmd' and ENTER. Right click and select 'Run as administrator'.

c. Type at the command prompt CHKDSK /P and press ENTER to scan the disk.

d. Then type CHKDSK C: /F /R and press ENTER to repair corrupt sectors, if there are any.

Note: The root drive has to be C: and the command may schedule a task at the system startup, if it does, then press Y to schedule a task and restart the computer to perform chkdsk.

Once chkdsk completes, boot to the desktop and then check.

Important: While performing chkdsk on the hard drive if any bad sectors are found on the hard drive when chkdsk tries to repair that sector if any data available on that might be lost.

Your reply is very important for us to ensure a proper resolution. Please get back to us with the above information in order to assist you accordingly.

For further assistance, you can post your query in Microsoft Community