Windows 10: Alienware 15 r3 won't boot/Updated to Windows 1903

So... I bought Red Dead Redemption 2 from Epic the day after the release. I had problems, as did everyone...

I am not too familiar with this computer "behind the scenes", I use it mostly for school. I tried everything. Bios, drivers and all. Finally against my better judgement I updated to Windows 10 1903 from the previous Windows 10. It worked to get RDR to load and be playable.

I booted up the next day and received an "Invalid signature detected. Check Secure Boot Policy in Setup." I ran through many a forum. I have disabled the Secure Boot option as it says for many people it works. Not for me. Now I'm just stuck at the main Alienware alien head load screen with F2 and F12 options in the bottom corner.

How do I resolve this problem? How do I get it back to working order? Even if I lose the files, I need it working!



Please help! My brain is bleeding from stress. Thank You!

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:)

 

Windows Hello not working on Alienware 15 r3

Will you fix this problem on Alienware 15 r3?

 

Alienware says it's Microsoft's problem that my Aurora R3 will not upgrade to Windows 10

I was also having an issue like this, I would follow these steps but I really don't want to dual-boot. Do you think Microsoft (because I know Alienware wont :/ ) will take steps to help us (people with alienware aurora r3's) out? I really like the look of
Windows 10 but to be unsupported without having to perform a little trick on the setup (hold down the power button when the computer is restarting in setup, wait about 10 seconds then start it back up again; basically a manual reboot) is a shame.

Upgrade stuck on boot : Windows10

This is the post on reddit on the issue, people have had issues with their R3's.

 

Alienware Aurora-R3 & Windows 10

Hi philby12,

Just cross-checked threads on Dell Community and verify a thread (also noticed that we are on both present in some discussions).

Tesla1856 posted in a thread saying the R3 seems to not have an industry standard UEFI

Dell Offizielle Seite | Dell Deutschland

but also asked if anyone has tried upgrading in Legacy.

Tesla1856 post was shortly after marked as the Answer.

I have Legacy disks since I got my R3, this limits the hard disk to 4 primary partitions which is quite restrictive, but this isn't an issue for me as I don't need many drive letters, one or 2 per SSD/Hard Disk is more than enough for me. UEFI is however
listed in the Bios boot (A06).

I think if you find a way to use a Legacy partitioned disk, you may be in a better situation like I am without previously realising, UEFI may be the root problem for R3 owners using it and wanting to upgrade but cannot.

I used Partition Wizard to copy my Win7 to a fresh SSD for upgrade to Windows 10, that way I was reassured I would be able to recover whatever happens.