Windows 10: Modify windows 10 partitions?

My win10 was upgrated from win7 where some how got 3 partitions

Code:

DISKPART> list disk  Disk ###  Status         Size     Free     Dyn  Gpt  --------  -------------  -------  -------  ---  ---  Disk 0    Online          298 GB   117 GBDISKPART> select disk 0Disk 0 is now the selected disk.DISKPART> list partition  Partition ###  Type              Size     Offset  -------------  ----------------  -------  -------  Partition 1    Primary            100 MB  1024 KB  Partition 2    Primary             34 GB   101 MB  Partition 3    Primary            146 GB    34 GBDISKPART> list volume  Volume ###  Ltr  Label        Fs     Type        Size     Status     Info  ----------  ---  -----------  -----  ----------  -------  ---------  --------  Volume 0         System Rese  NTFS   Partition    100 MB  Healthy    System  Volume 1     C                NTFS   Partition     34 GB  Healthy    Boot  Volume 2     D   WorkPlace    NTFS   Partition    146 GB  Healthy    Pagefile

Is there anyway to make partition 2 and 3 logic ones inside of an extended partition and keep the system working without re-install the whole thing?

I'd like to install ubuntu at the free space after those partitions.

Thanks for your help.

edited diskpart output from first post:

Code:

DISKPART> list disk
  Disk ###  Status         Size     Free     Dyn  Gpt
  --------  -------------  -------  -------  ---  ---  
Disk 0    Online          298 GB   117 GB

DISKPART> select disk 0
Disk 0 is now the selected disk.

DISKPART> list partition
  Partition ###  Type              Size     Offset
  -------------  ----------------  -------  -------  
Partition 1    Primary            100 MB  1024 KB  
Partition 2    Primary             34 GB   101 MB  
Partition 3    Primary            146 GB    34 GB

DISKPART> list volume
  Volume ###  Ltr  Label        Fs     Type        Size     Status     Info
  ----------  ---  -----------  -----  ----------  -------  ---------  --------
  Volume 0         System Rese  NTFS   Partition    100 MB  Healthy    System
  Volume 1     C                NTFS   Partition     34 GB  Healthy    Boot
  Volume 2     D   WorkPlace    NTFS   Partition    146 GB  Healthy    Pagefile

It is OK to have boot partition as logical but not system (as system must be active primary partition) I believe.

CountMike said:

I'd like to strongly discourage you from mixing Linux or any other OS an a disk of that size.

Why? The OP currently has 117GB of disk space that is unallocated and not being used for anything at all.