I have a 2TB WD Re hard drive that I was planning to use in a RAID 1 configuration for data storage on my desktop, but I am unable to delete the existing partitions and reformat the drive. The HDD was previously used in another system, but has been inactive for a while and I don’t remember the details of its previous usage. Based on the name and the fact that Windows is showing double its extra capacity, it was likely used to store backups and possibly as part of a Storage Spaces drive.

I am running Windows 10 Pro 1909 and when I view the drive in Disk Manager, it shows the following:

I have tried using DiskPart to clear the read-only attribute from the drive. Each time I run the command, DiskPart tells me it was successful in clearing the attribute, but the disk remains read-only. I have also attempted to use EaseUS Tools M and EaseUS Partition Master Professional to no avail.

I have read on other websites that it may be possible to clear the read-only attribute by editing the registry at the following location: Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\StorageDevicePolicies.

However, I do not have this path in my registry and have not been able to find a similar setting.

I have also tried running CHKDSK on the drive, but am unable to run it in /F mode due to the read-only setting. When I run CHKDSK in read-only mode, it returns no issues.

I am running out of ideas on how to fix this issue. The only other suggestions I have come across are to try using GParted in Linux or to overwrite the disk with dd in Linux. I do not have Linux installed on any physical computers (only VMs), but I am willing to set up a Linux system if necessary. If all else fails, I do have a hammer that I can use as a last resort.

If you have any additional ideas on things to try, I would welcome them.

Askify Moderator Edited question May 4, 2023