Unlabeled partition on HP Elitebook 840 G7 - is this a system partition?

[beermati]

Hi - I recently purchased a refurbished HP EliteBook 840 G7 with a 1TB SSD. 

The drive has three partitions: First (499MB) is the EFI System Partition, Second is the C: drive (~944GB) and then there is a third partition of about 9.5GB without a volume label and it does not show up in the volume list when I look using Windows Disk Management Utility.  If I right click on the partition the only option available is Delete Volume.

Is this typical for an HP laptop?  It's way too big to be a recovery partition.  

Edit: When I received the laptop and booted it up it went through an HP startup routine, then Windows startup, etc. as I would expect.  I didn't document the exact process, but it seemed normal for a 'new' computer start.  Point being, it was not already initialized.

Thanks for any assistance.

[banhien · Accepted solution]

@beermati 

Please read the following article

           https://learn.microsoft.com/en-us/answers/questions/546370/windows-10-drive-partition-with-no-inform...

Regards.

[beermati]

Hi - thanks.  I'm not sure that my situation was exactly the same, but, based on that, I did use the diskpart tool in the command window and when I listed the partitions on disk 0, that partition was labelled "Recovery".  I appreciate the quick and helpful reply!