Windows 10 has 5 Partitions after a clean install

ssherjj

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Hi all!.

Can someone tell me if my Disk Management looks alright after a clean install of Windows 1703 which was updated to Windows 1709? I have not seen 5 Partitions before.


Thank you,
 

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My "guess" is this computer/disk was upgraded from Windows 7 or 8 and that's how you got the extra Partition 5. This is not hurting anything and clearly, you have tons of free disk space available so that is not an issue either. So it is safe to just leave it.

If you really want to get rid of it, you can follow Kelvin Hsu's diskpart instructions here.

While this is typically a very safe procedure, whenever messing with partitions, it is always wise to backup any data on that disk you don't want to lose before proceeding.

As a side note, you said you did a "clean" install of Windows. While clean installs can walk you through partitioning and formatting of new disks, if the disk has already been partitioned and formatted, it will not walk you through repartitioning or deleting partitions.
 
Hi,

That is the default partition layout for a UEFI based PC

dep-win10-partitions-uefi.png

UEFI/GPT-based hard drive partitions | Microsoft Docs
 
Interesting. I just checked 4 systems here. All are running W10 but two were upgraded from W7. The other two computers were built new with W10. The two that were upgraded have the default partition layout SleepyDude describes. But the two computers that started life as W10 computers are as seen below.

Disk Management Image.JPG
 
Thank you so guys! I will look at the links provided in your posts. But I am running good so far. I might just leave the partitions alone. For right now I need to make a backup or Clone and Cloning is new to me so I need to figure that out before doing anything to the Partitions. A serious backup is needed now...:grin1: But when I installed Windows my system crashed with a black screen and Dell's diagnostics appeared saying my memory in slot 2 was bad. I purchased Corsair last February (32 GBs) which has been replaced 3 times! (Corsair has lifetime warranty). So I put back in the factory ram (16 GBs) in my system. Then I thought I cleared out the partitions by deleting all of them that were listed and thought I formatted Windows? I kind of was in panic mode when this happened because I could not get Windows Restore or anything else in the Windows Advanced mode. I did disconnect my D Drive before installing Windows so that I wouldn't mess up by putting the OS on the HD instead of SSD's.

I just question the 5 partitions because I have reinstalled my OS numerous times and had not seen this before.
 
Interesting. I just checked 4 systems here. All are running W10 but two were upgraded from W7. The other two computers were built new with W10. The two that were upgraded have the default partition layout SleepyDude describes. But the two computers that started life as W10 computers are as seen below.

Don't know the reason for the different number of partitions! On the machines I have installed, from scratch, in UEFI mode I didn't create any partition on the HDD and let Windows do it, in the end the 5 partitions were created.
 
I believe the MSR partition is not shown in Disk Management because it has no partition ID.
[FONT=segoe-ui_bold]Microsoft® reserved partition (MSR)[/FONT][FONT=segoe-ui_normal]Beginning in Windows 10, the size of the MSR is 16 MB.[/FONT]
[FONT=segoe-ui_normal]Add an MSR to each GPT drive to help with partition management. The MSR is a reserved partition that does not receive a partition ID. It cannot store user data.[/FONT]
Same source as SleepyDude
 
I use the HDD as my backup drive for pictures, downloads..etc..I first installed the OS on my SSDs and then hooked up the D drive. Which in doing that hasn't never produced 5 Partitions before. As long as everything is running good then I guess I'll keep things the way they are. Thank you @Axe0 and @SleepyDude for your information. All of you are the most help that I've even come across. It's definitely a learning experience and a pleasure to be in this Forum.

i can't thank you all enough for your time and expertise. :dance:
 
I believe the MSR partition is not shown in Disk Management because it has no partition ID.
I would think in Disk Management, that is the only place you should see it. Definitely not in File Manager.

SleepyDude said:
On the machines I have installed, from scratch
And these are totally custom/home built systems with Gigabyte or ASUS motherboards for example and individually purchased, new, totally blank drives? That is, not factory built Dell or HP systems that came with factory installed drives that were previously imaged?
 
SleepyDude said:
On the machines I have installed, from scratch
And these are totally custom/home built systems with Gigabyte or ASUS motherboards for example and individually purchased, new, totally blank drives? That is, not factory built Dell or HP systems that came with factory installed drives that were previously imaged?

I don't remember exactly the brand of the machines but I did use diskpart and the clean command to remove everything from the HDD.
 

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