I created a 100GB partition and when i install OS on it pc boots straight to windows
how can i solve this

Haha what @jespersh said. But you probably just need to open the boot menu by spamming F12 or Delete or something. And also, if you're installing your first Linux Distro, don't do Kali...

@jespersh My first reaction was : well that is how it should work... maybe I should check tags first before reading the question...

Followup question: uuhh why doesn't Steam work on Kali?!

your english is kinda not great here but if I understand the question correctly I think your problem is this:

you installed Kali *first* and then you installed Windows on top...

When you install Windows, it steals the boot partition for itself. Windows doesn't care about you or your system and it just assumes you want to use it exclusively...

However if you install windows *first* and then install any kind of linux on top, Linux will instead search for all bootable partitions first, and then present you with a boot menu everytime you start your computer so you can pick what OS you want to use.

if this is your problem, you have to go to your BIOS, disable the windows partition and boot into linux (if not possible, you will have to use a live CD or a reinstall Kali) and you'll have to use something like "efibootmgr" or the "boot-repair" package. Or you can mingle with grub-install yourself

@Hazarth
Thanks....the English wasn't coming out great coz of the frustration 😆
I installed Kali on top of windows

And yeah normally when i boot i should see a boot menu to sellect which OS to boot but no win10 is taking over

And I'm not sure if i can disable partitions in BIOS

@ScriptCoded
I've delt with parrot, ubuntu, mint and zorin

Note that Kali isn't meant to be used as an "everyday-use" OS. I'm even sure it is considered a bad idea to install it on an everyday-use machine, as its default configuration isn't secure, since it's a pentesting distro, and data from your other partitions could potentially leak.

Anyway, try booting in a live environment (Kali live USB should do it, but there are dedicated distros such as system-rescue) and reinstall and/or reconfigure grub. Or try reinstalling Kali altogether.

@pipe Kali website explicitly says it is intended as a live-cd system for testing and not for regular usage.

@iiii Although I heard that quite a bit, I wanted to find where it's stated on their website and couldn't.
It is however stated that while it's not made for regular use (as a lot of things are disabled or restricted by default), it's made secure by default. So I had to correct myself: by default, it should be secure. But don't mess with a power you're not sure to understand.

@Taqsblaz3

ok, so you installed Kali on top of windows, and it's still booting you directly into windows?

I mean I guess the same solution still applies though. If your Kali installation is sitting in there somewhere on a bootable partition, using a Live CD you might be able to force GRUB to install and that might fix it

Try a 1000 GB partition

@pipe okay, I haven't visited their website for a long time. It might have changed.

when the uefi logo shows press f2 then put the other partition at the top

@Fast-Nop because kali is not for gaming

I find that Windows will also kidnap the bootloader after installing updates sometimes. I use a tool called BOOTICE to reorder/rectify my boot entries.

Something else I use on multi-booting machines that could make your life easier is a tool called rEFInd - I don't recall for certain whether it would rectify the problem you are having, but worth checking out.

@TheAwesome98 No shit, Sherlock.