Hello, Since the mainstream support for 8.1 ended this month, I decided to make a custom ISo for one last time, including August Rollup. I did a few things in the audit mode, most of which were tested methods so no issues there but also I changed Windows default aero theme with my 3rd party theme after Sysprep through mounting the image offline. I took extreme care in replacing all the related files .msstyles ,.theme and shellstyle.dll (System is already patched to accept 3rd party themes) Two other new things that I did in Audit mode is I removed the key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Themes\DefaultColors and I created SetupComplete.cmd in Windir\Setup\Scripts and included the following command in it powercfg /hibernate off After this I captured the image using winscript.ini (attached below) and when I did a first test run, using answer file, windows PE reported that I don't have any image in the index to install. So next again captured the image, this time without using the exclusion list and ran the installation without the answer file. After I enterted the key, Win PE again gave an error stating that the key entered does not correspond to any of the image available. I'm 100% confident I didn't make any mistake with the key. Can anyone please point out what might have caused this error to occur ? And how can I use my 3rd party theme as default instead of Aero ? I read discussion on technet someone mentioning to change the paths in HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\ThemeManager \ DLLName And HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Themes \ InstallTheme \ InstallVisualStyle to a custom theme that should work. I haven't tried this method though. And lastly, during the mount, I looked up in the Windir\setup folder and there was no Scripts folder there. I investigated and found the if the OEM key is used, windows 8 does not run Setupcomplete.cmd. So how can I disable Hibernate from within the windows, without requiring the answer file pass ? Any help will be greatly appreciated. Thank you for reading. Edit : wimscript.ini Code: [ExclusionList] $Recycle.Bin $Windows.~BT $Windows.~WS Recycler Recycled \PerfLogs PerfLogs System Volume Information swapfile.sys hiberfil.sys pagefile.sys winpepge.sys \$ntfs.log \hiberfil.sys \pagefile.sys \swapfile.sys \winpepge.sys "\System Volume Information" \RECYCLER \Windows\Temp\ \Windows\Logs\ \Windows\Prefetch \Windows\CSC \Windows\CbsTemp\ \Windows\WinSxS\ManifestCache\ \Program Files\WindowsApps\Deleted\ \Program Files\WindowsApps\DeletedAllUserPackages\ \ProgramData\Microsoft\Windows\WER\ \ProgramData\Microsoft\Windows\Caches\ \Boot \Recovery \Recovery.txt \BOOTSECT.BAK \ProgramData\Microsoft\Network\Downloader\* \Users\Administrator \Windows\debug\* \Windows\inf\*.etl \Windows\inf\*.log \Windows\Logs\CBS\* \Windows\Logs\DISM \Windows\Logs\DPX \Windows\Logs\PBR \Windows\Logs\DirectX.log \Windows\Panther \Windows\Prefetch \Windows\security\database\*.chk \Windows\security\database\*.log \Windows\security\database\*.jrs \Windows\ServiceProfiles\LocalService\AppData\Local\FontCache-S-1-5-21-*.dat \Windows\System32\catroot2\*.chk \Windows\System32\catroot2\*.log \Windows\System32\catroot2\*.jrs \Windows\System32\CodeIntegrity\bootcat.cache \Windows\System32\Sysprep\Panther \Windows\System32\Sysprep\Sysprep_succeeded.tag \Windows\System32\winevt\Logs\* \Windows\Temp\* \Windows\WinSxS\ManifestCache\* \Windows\WinSxS\Temp\PendingDeletes\* \Windows\DtcInstall.log \Windows\PFRO.log \Windows\setupact.log \Windows\setuperr.log \Windows\TSSysprep.log.log \Windows\vmgcoinstall.log \Windows\WindowsUpdate.log \Users\*\AppData\Local\Temp\ \Users\*\AppData\Local\Microsoft\Windows\Explorer\ \Users\*\AppData\Local\Microsoft\Windows\INetCache\ \Users\*\AppData\Local\lxss \Users\*\AppData\Local\Packages\CanonicalGroupLimited.UbuntuonWindows_79rhkp1fndgsc\LocalState\rootfs\ \Users\*\OneDrive Can anyone please also check the wimscript and see if there's any entry which I shouldn't use. Thank you for anyone who appears in my thread.