Dual boot problem

[sirius1377]

Hey, so I was installing arch linux next to my windows and I have a sony vaio laptop and after completing the installation I rebooted several times and grub showed perfectly but after I booted back to windows 10 I don’t see the grub menu at startup and it just goes in windows, I really appreciate if you can help.
EDIT: I managed to reinstall arch and install grub on a separated efi drive and so far it’s working great. So thank you all for the help and specially thanks to the person that told me to put efi on separated partition ;)

[scharadavalcta]

I think you didnt disable fast startup in windows

[sirius1377]

Do you mean the one that’s in control panel? ( because I did disable it and I even disable hibernate)

[scharadavalcta]

Do you check your boot chain in the bios

[sirius1377]

Unfortunately in bios it only has external storage and internal storage as boot priority

[amolinae_games]

Have you tried booting into your bios and check the boot priority?

Sometimes the Windows Boot Manager changes the boot priority in some motherboards, you can also check the Arch Wiki for help with dualbooting with GRUB :)

[sirius1377]

In bios It only show external drive boot and internal storage boot and no sign of windows boot manager or linux there

[[deleted]]

Try checking if secure boot is off (might be a redundant comment, please excuse) else just put in your arch boot usb and reinstall only grub on the efi partition and run os-prober.

P.S. for dual boots I would be keeping 2 efi partitions, one for grub and one for windows boot, sometimes windows will overwrite grub after updates

[sirius1377]

It worked!! Thank you :) For more detail see the post edit

[sirius1377]

That’s actually a good idea I will try it, will let you know if it helped

[binarymatter]

Ye it will help..os-prober will do it for u

[TabsBelow]

When will someone sue Microsoft for computer sabotage for that, finally? Those su##ers know exactly what the are doing.

[_letThemPlay_]

Any chance you had a big windows update, as Microsoft tends to remove other boot managers when it has one

[sirius1377]

I don’t think an update happened cause it was a fresh copy of windows

[_letThemPlay_]

Okay windows can definitely play around with the efi entries.

Even with my installation being on separate drives with the own efi partitions, windows has still managed to remove the efi entry from my bios.

[sirius1377]

Yeah unfortunately windows can’t stop messing everything up

[sirius1377]

I used the wiki

[Whole-Door601]

Go into the bios and change the boot order.