Dual boot laptop, bitlocker blocked out windows. approach for reinstalling?

Scott Cooper

10/27/22, 12:14 AM

pretty new to ubuntu and having some troubles with new setup. Long story short got a new dell xps 9700 yesterday, it has 2 m.2 ssds so I installed linux on on and windows on the other. But as this is only my second linux install ever I forgot about tpm/bitlocker on windows. after getting all drivers and programs running on linux I went to swap back to windows and was locked out by bitlocker. I inserted the 40 digit key and then had the message that the boot drive was couldnt be accessed. I am now thinking that I should just reinstall windows but am unsure about the best way to do it so this doesnt happen again. can you please let me know if the my thoughts on the below steps will work?

Also, for ultra safety could I just physically remove the ubuntu m.2 ssd while I do the windows install to ensure that nothing gets repartioned/screwed... took ages to get all of the nvidia/sound drivers working. I have made a backup with time shift aswell.

info:

I have made a ubuntu backup with timeshift to a usb
I have a windows 10 bootable usb that I will use

Steps?

restart computer, enter bios and enable secure boot
select windows boot manager, start up. it will enter the recovery options.
select reinstall windows from usb bootable
install windows and once installed first thing disable bitlocker encryption
What do I disable in bios regarding TPM??
reboot, go into bios. disable secure boot, change ubuntu to boot manager again
should be able to switch between windows and ubuntu now?

Thanks for any help guys

0 + 2

backup

sancho.s ReinstateMonicaCellio

10/27/22, 12:55 AM

Probably better suited for Superuser

Nmath

11/5/22, 2:30 AM

since this question is about (re)installing Windows and/or fixing your bitlocker encryption, it's not on topic here. You should ask about this somewhere that Windows is supported

Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: Dual boot laptop, bitlocker blocked out windows. approach for reinstalling?

TH: แล็ปท็อปบูตคู่ bitlocker ปิดกั้นหน้าต่าง วิธีการติดตั้งใหม่?

RO: Laptop dual boot, bitlocker blocat în ferestre. abordare pentru reinstalare?

RU: Ноутбук с двойной загрузкой, битлокер заблокировал окна. подход к переустановке?

VI: Máy tính xách tay khởi động kép, bitlocker chặn cửa sổ. cách tiếp cận để cài đặt lại?

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