unistalling zorin os

Hello,
I decided to give a shot again to zorin after a few years. Unfortunately this time installing it was a real pain. I had to boot the system many times from the DVD till it worked, but after the installation process I have noticed so many problems in the OS. I is very slow (win 10 is way much faster ) So I am deciding to uninstall it.
I have installed it in the same partition with windows. I did try to install in an other partition I created before but for some reason it didn't work
So from the installation process I've chosen the first option, at the same partition, but by shrinking a part of it for zorin.
I tried to use os unistaller from the live dvd boot but I'm afraid when it says that it will format the partition where zorin is, I don't want windows to be formated....
What should I do?

Thank you

run lsblk in tty and post here.

qnarkill wrote:run lsblk in tty and post here.

I am sorry for asking this, but how to do that?

press ctrl + t or look from the menu for Terminal. Then type in

Code:

lsblk

and hit enter.

Thank you for your time
Since I bought the PC, it had several partition created which were not visible from windows my computer.
Here is when I did that comand on terminal (zorin)

Code:

NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sdb      8:16   1  14,5G  0 disk
└─sdb1   8:17   1  14,5G  0 part /media/erand/0C45-4252
sr0     11:0    1  1024M  0 rom 
sda      8:0    0 465,8G  0 disk
├─sda4   8:4    0   128M  0 part
├─sda2   8:2    0   260M  0 part /boot/efi
├─sda9   8:9    0   3,9G  0 part [SWAP]
├─sda7   8:7    0  24,4G  0 part
├─sda5   8:5    0 342,9G  0 part
├─sda3   8:3    0   500M  0 part
├─sda1   8:1    0  1000M  0 part
├─sda8   8:8    0  42,7G  0 part /
└─sda6   8:6    0    50G  0 part

Well looking at those i would just remove the linux partitions and continue like nothing happened.

Before you go any further follow this guide first!:

http://www.techradar.com/how-to/softwar ... sk-1302377