REinstalling Ubuntu wihtout data loss

[plopmon]

I have currently dual booted Windows 10 and Ubuntu 16.04. now I just want to get rid of windows and want Ubuntu to take over my system (nothing of windows should be there. like I formatted my C: drive and merged with Ubuntu but boot entries of Windows are still there and by default PC boots into windows unless I go to F9 menu )

is there a way to reinstall Ubuntu without losing ANY OF MY PROGRAMS/DATA ??

here are my partitions:

NAME FSTYPE SIZE MOUNTPOINT LABEL
loop1 squashf 79.5M /snap/core/1689
sr0 1024M
loop2 squashf 4K /snap/anbox-installer/17
loop0 squashf 79.5M /snap/core/2312
sda 465.8G
├─sda2 vfat 100M /boot/efi
├─sda9 ext4 1M /media/jayant/65d2f87a-9de6-4ce7-8896-197ca9f8f
├─sda7 ext4 267G /
├─sda5 ext4 940M
├─sda3 ext4 16M
├─sda1 ntfs 450M Recovery
├─sda8 swap 5.9G [SWAP]
└─sda6 ntfs 191.4G New Volume




if anyone is curious about New Volume well its my E: Drive in which my precious data is there. (help would be appreciated if anyone knows how to remove windows metdata from it without booting into windows. I don't care if data loss occurs in it. at least ill get something from it)


[B]EDIT 1
i am providing more details of my partitions

Disk /dev/loop0: 79.5 MiB, 83349504 bytes, 162792 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes




Disk /dev/loop1: 79.5 MiB, 83349504 bytes, 162792 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes




Disk /dev/loop2: 4 KiB, 4096 bytes, 8 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes




Disk /dev/sda: 465.8 GiB, 500107862016 bytes, 976773168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: 03F2813D-0FA2-40B9-9B3D-3B7BC2C5E47E



Device Start End Sectors Size Type
/dev/sda1 2048 923647 921600 450M Windows recovery environment
/dev/sda2 923648 1128447 204800 100M EFI System
/dev/sda3 128448 1161215 32768 16M Microsoft reserved
/dev/sda5 573405184 575330303 1925120 940M Windows recovery environment
/dev/sda6 575332240 976769071 401436832 191.4G Microsoft basic data
/dev/sda7 1161216 561051647 559890432 267G Linux filesystem
/dev/sda8 561051648 573405183 12353536 5.9G Linux swap
/dev/sda9 976771072 976773119 2048 1M Linux filesystem


Partition table entries are not in disk order.

[kurt18947]

I'm not knowledgeable enough to offer advice on how to accomplish what you want though I'm sure it's possible. What I would recommend is to back up any data you value first, I'd probably do two copies and make sure the copies are readable/re-storable.

[ajgreeny]

See Boot-Repair in my signature below and follow the instructions there to run the Boot-info-script. I suspect you may have installed Ubuntu in BIOS mode whilst Windows 10 is UEFI.

Do not run a default repair at this stage, just run the script and post back here the pastebin URL you are given; someone will be able to look at that and advise you where to go from here.