chkdisk didn't report any errors. Request new advise. JP

[Jaap Poot]

Was advised to check the hard drive with checkdisk in DOS. No errors to report but the installation bug is still there.
Ubuntu files are installed on the harddrive, but no bootloader. Windows loader still reports only Windows 10 as operating system.

What next?

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: ubiquity 2.18.8.9 [modified: lib/partman/automatically_partition/question]
ProcVersionSignature: Ubuntu 3.19.0-25.26~14.04.1-generic 3.19.8-ckt2
Uname: Linux 3.19.0-25-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.11
Architecture: amd64
CasperVersion: 1.340.2
Date: Tue May 17 14:23:53 2016
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/ubuntu.seed boot=casper only-ubiquity quiet splash --
LiveMediaBuild: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
ProcEnviron:
 TERM=linux
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
SourcePackage: grub-installer
UpgradeStatus: No upgrade log present (probably fresh install)

[Phillip Susi (psusi)]

I'm not sure what partition you checked, but your EFI system partition is corrupt and will need to be repaired.