installing Lubuntu and installation crashes..

[Tuomas Pihlajaniemi]

I have lubuntu on dvd from www.lubuntu.net i can run it from dvd but i cannot install it for some reason.. i also cannot format my hdd which contain win 8.01 and its completely stuck..

ProblemType: Bug
DistroRelease: Ubuntu 17.04
Package: ubiquity 17.04.9
ProcVersionSignature: Ubuntu 4.10.0-19.21-generic 4.10.8
Uname: Linux 4.10.0-19-generic i686
ApportVersion: 2.20.4-0ubuntu4
Architecture: i386
CasperVersion: 1.380
Date: Thu Aug 24 08:48:16 2017
InstallCmdLine: file=/cdrom/preseed/lubuntu.seed boot=casper only-ubiquity initrd=/casper/initrd.lz quiet splash --- debian-installer/language=fi keyboard-configuration/layoutcode?=fi
LiveMediaBuild: Lubuntu 17.04 "Zesty Zapus" - Release i386 (20170412)
ProcEnviron:
 LANGUAGE=fi_FI.UTF-8
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=fi_FI.UTF-8
 LC_NUMERIC=C.UTF-8
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)