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What are all these partitions?


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#1 jfruch1

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Posted 01 August 2015 - 02:16 PM

Upgraded my 8.1 to 10 and it is activated.  Downloaded the .iso file and burned to a disk.  Now I want to do a clean install. Just before I decided to check my partitions to see if I wanted to make any changes and boy was I surprised .  Can I get rid of any of these partitions? I know there are a couple that are necessary, but they can't all be.  I'm especially wondering about the two 450 MB ones after Win 10 and Data Storage Attached File  Capture.JPG   81.99KB   5 downloads



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#2 Aura

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Posted 01 August 2015 - 02:17 PM

Hi jfruch1 :)

These are Recovery partitions for the system (Windows). You can safely delete them before clean installing Windows 10 again, since they'll be recreated automatically during the installation.

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#3 jfruch1

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Posted 01 August 2015 - 02:20 PM

Thanks.  I was tempted to just delete those two but decided I better check first.



#4 Aura

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Posted 01 August 2015 - 02:21 PM

All good no worries :)

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#5 jfruch1

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Posted 01 August 2015 - 03:42 PM

Hi jfruch1 :)

These are Recovery partitions for the system (Windows). You can safely delete them before clean installing Windows 10 again, since they'll be recreated automatically during the installation.

Tried to delete them but I get a box with HELP in it when I click on the partition.  The main partitions with Windows 10 and Data Storage have options but not those 450 MB ones.  Weird!



#6 Scoop8

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Posted 01 August 2015 - 04:29 PM

jfruch1

 

Those partitions are probably "protected" partitions which Windows prevents the user from deleting with the Disk Mgmt Console.

 

You can use "Diskpart" to delete those partitions or, with one command, delete all partitions and unallocate the HDD with Diskart's "clean" command.

 

To use Diskpart, open an elevated CMD window, or open a "run" dialog and enter   diskpart   in the run dialog field.  That works with Win 7 (run dialog > diskpart) and I believe 8[.1] as well.

 

Here's an example, using one of my spare Flash Drives (disk 3).  My entries are in black font.  The system return info is in blue .

 

(once at the DIskpart utility via CMD window or accessing Diskpart directly via the "run" dialog field)

 

Microsoft DiskPart version 6.1.7601
Copyright © 1999-2008 Microsoft Corporation.
On computer: JEFF-PC

 

DISKPART> list disk

  Disk ###  Status         Size     Free     Dyn  Gpt
  --------  -------------  -------  -------  ---  ---
  Disk 0    Online          931 GB      0 B
  Disk 1    Online          465 GB      0 B
  Disk 2    Online          465 GB   100 MB
  Disk 3    Online           14 GB      0 B

 

DISKPART> select disk 3

 

Disk 3 is now the selected disk.

 

DISKPART> list disk

  Disk ###  Status         Size     Free     Dyn  Gpt
  --------  -------------  -------  -------  ---  ---
  Disk 0    Online          931 GB      0 B
  Disk 1    Online          465 GB      0 B
  Disk 2    Online          465 GB   100 MB
* Disk 3    Online           14 GB      0 B

 

DISKPART> clean

 

DiskPart succeeded in cleaning the disk.

 

I always repeat the "list disk" (or partition) commands to verify that I have selected the correct disk/partition (note the "*" symbol designating the disk or partition is in focus/selected).

 

 

You can also delete protected partitions individually using the "delete partition override" command.  Here's an example using the same Flash Drive after I re-created a partition:

 

DISKPART> list partition

  Partition ###  Type              Size     Offset
  -------------  ----------------  -------  -------
  Partition 1    Primary             14 GB  1024 KB

 

DISKPART> select partition 1

 

Partition 1 is now the selected partition.

 

DISKPART> list partition

  Partition ###  Type              Size     Offset
  -------------  ----------------  -------  -------
* Partition 1    Primary             14 GB  1024 KB

 

DISKPART> delete partition override

 

DiskPart successfully deleted the selected partition.

 

 



#7 Aura

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Posted 01 August 2015 - 07:03 PM

Once this is done, you might not be able to add the space you freed by deleting them to other partitions via the Windows Disk Management console. You'll have to use a third-party programs, like EaseUS Partition Master Free to do that.

http://www.easeus.com/partition-manager/epm-free.html

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