Computer shutdown while updating
Lastly we can execute the grub option in the recovery menu to fix any bootloader issues. To complicate things, since Ubuntu 11.10 there are two distinct methods to install with Wubi.
The first way is using the Desktop ISO, which applies to all sub-flavours (Kubuntu, Lubuntu, Mythbuntu etc.) and also if you downloaded the Ubuntu ISO yourself.
Again refer to UEFI Community Ubuntu Documentation at Section 4 Not all of these machines implement Secure Boot.Stack Exchange network consists of 173 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.Visit Stack Exchange also shows up as a black screen.Ubuntu's installer 'when attempting to run in UEFI mode) will hang and stop due to different manufacturer's implementations of the UEFI specification and will hang in different ways.To identify if your machine is booting in installer UEFI mode you will see REF: UEFI Community Ubuntu Documentation Section 2.4 The picture above actually only confirms your DVD/USB booted using UEFI and there will be some means in firmware settings to ensure drives are booted in order to make the UEFI installer run (a solution may possibly be as simple as ensuring SATA is set to AHCI) - check your vendors manual!
Also check the UEFI Community Documentation Section 2.3 for more details.