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I have a laptop with Windows 8. I decided to install Ubuntu. It didn't offer me to install it with Win8, though according to the docs it should have, or at least if I had win7. I clicked Something else, created a partition (20GB) and installed the system. After installation when I restarted the computer it couldn't boot in. I checked the BIOS, and found that the HDD is missing from the boot sequence, It can only boot from DVD. The SATA Configuration menu sees my HDD (Serial ATA Port 0 Hard Disk Serial ATA Port 2 ATAPI CDROM DVD) but it's missing from the boot.

In linux (I clicked Try Ubuntu) I opened terminal and for the fdisk -l command I get

Disk /dev/sda: 750.2 GB, Partition 1 does not start on physical sector boundary.

In the win installer Command Prompt I typed diskpart, then list disk, then list volume


Volume 0 E UDF DVD-ROM 2510MB Healthy
Volume 1 C RAW 18 GB Healthy
Volume 2 D Linux NTFS 20 GB Healthy
Volume 3 NTFS 141GB Healthy hidden

This is not what I expected.

What can I do?

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You wiped the boot record You will have to use a Windows Recovery Disk to maybe solve your problem. If the partition is not even seen in Linux then its gone, and it would be easier, just to reinstall Windows. Having a hidden partition is likely what caused the problems. –  Ramhound May 10 '13 at 20:07
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