Pavilion 15-p066us: need explanation of all these Partitions

* beep * management in my system (15-p066us-Win 8.1) display 4 partitions in the gpahic Panel:

Healthy 650 MB (recovery Partition)

260 MB Healthy (EFI) system partition)

675,18 GB NTFS Windows (C)

22,44 GB NTFS RECOVERY (D healthy (OEM Partition))

At the same time, the ad panel shows the RECOVERY (D score twice.) At the same time with the same information.

I know what are the scores C: and D: (I think).

Why the D: partion is listed twice?

What is the difference between the recovery 650 MB Partition and Go 22,44 (D Partition RECOVERY?)

What is the EFI System Partition?

I know, a lot of 'newby-ISM' here.

BTW, the system works well, I just want to know what is inside.

Hi there @xdellman

Welcome to the Forums of HP Support! It's a good place to find the help you need, so many other users, the HP experts and other members of the support staff.

I understand your question and confusion about different partitions on your system. With a lot of BIOS more recent systems are more than before.

There are a few resources I can offer for you to watch which can help. Despite some "technical jargon", they should be useful for you. Start with this one:

Partitioning and naming of the disks (Windows 8)

It is a wonderful message of @Daniel_Potyrala , even if reference is made to windows 7, is loaded with useful information that applies to windows 8 as well. Its theme is more on the preparation of another drive with partitions, but this part of the update, there is information on the purpose of most of the partitions that you ask the subject. For your question, see especially section B, C, and E in this post on our forums.

How to repartition the disk HARD of HP notebook with pre-installed Windows 7

The EFI partition is a component of the system BIOS, abd allows the drive to be initialized and readable with a compatible BIOS, UEFI systems. If it were to be tampered with, the reader is more would probably recogneized as a boot device.

The 22GB recovery partition is going to be one that contains an image of your original factory configuration. It is recommended ihghly you have a set of recovery discs to have another backup of your system. You can make only one series.

The smallest is probably one that contains backups of the current BIOS installed and the drivers used in case you need to recover a BIOS update has failed. Normally there is a small partition called HP_Tools.

I hope this helps.

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