Cannot boot Windows 8 using UEFI at Latitude e5420

Question

Hi, after some troubles I finally installed Win 8 on my GPT partition. In BIOS Setup I've checked UEFI in Boot List Option and in the Boot Sequence I can see item 'Windows Boot Manager'. So, It seems good. However, after the installation, not a single boot attempt was successful. When I use F12 to see boot options, I can choose 'Windows Boot Manager' from the list. After that, a blank screen appears and nothing more. When I use keyboard arrows up/down. List of boot menu appears again as I browse items. BIOS version is the latest one (A09). I've already tried to downgrade BIOS. Versions A03, A07 and A08. No result. Although, I've installed Ubuntu to another partition. Now I can see two items in the boot menu 'Windows Boot Manager' and 'ubuntu'. Still the same behavior. IMHO, the problem must be with BIOS. Any ideas?

jan227 · Accepted Answer

Problem solved with release of BIOS ver A11. So, it is OK now, however it took almost 1 month. Quite long time for NBD ProSupport. :-/

jan227 · Answer

Using my NBD ProSupport for this laptop, I've contacted DELL support and guys demonstrated effort to help. None of provided advices has been useful and didn't solved the issue. Finally, DELL  tried to replace the motherboard. Now I have BIOS ver. A10 with the new MB (interesting, this BIOS version is not available at dell webpages yet) but the problem persists (+ BIOS setup started to freeze randomly).

Locked Topics – Laptops General

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