PMPrebUSB - appcrash of qemu in Win-7-64bit I am not sure if this issue is a bug of qemu or by Win-7. I want to test in advance with QEMU the ability if my USB-Rescue-Drive is booting correctly. I have Win-7-64 and run qemu v.o.15.1.0 out of the installed RMPrepUSB v.2.1.719 program. The settings for the preparation of my USB drive were FAT32 boot as HD, bootloader WinPE/Win-7/Vista, set for running iso-files directly in %_ISO \MAINMENU\Hiren’sBootCD.iso. When I run Qemu I get the messages in the cmd starting window it says: Administrator: RMPrepUSB QEMU Launcher ************************************** EXECUTING "C:\Program Files (x86)\RMPrepUSB\qemu\STARTFROMUSB.cmd" DRIVE NUMBER=3 MEMORY SIZE=1000 HARD DISK IMAGE=harddisk.img NOWRITE= Found OS=VISTA_OR_LATER Sending command Start_VM.exe 3 500 qemu.exe -L . -name "RMPrepUSB Emulation Session RAM=1000MB VirtualHDD=harddisk.i lt+LCtrl)" -boot c -m 1000 -drive file=\\. \PhysicalDrive3,if=ide,index=0,media=disk -hdb harddisk.img to shell... Win-7: in the second window appears: *********************************** -->qemu funktioniert nicht mehr Problemsignatur: Problemereignisname: APPCRASH Anwendungsname: qemu.exe Anwendungsversion: 0.15.1.0 Anwendungszeitstempel: 4f478c16 Fehlermodulname: qemu.exe Fehlermodulversion: 0.15.1.0 Fehlermodulzeitstempel: 4f478c16 Ausnahmecode: 40000015 Ausnahmeoffset: 00053b06 Betriebsystemversion: 6.1.7601.2.1.0.256.48 Gebietsschema-ID: 1031 Zusatzinformation 1: bf8d Zusatzinformation 2: bf8d49108a2e5a0707fc48438e01652a Zusatzinformation 3: b0f1 Zusatzinformation 4: b0f155b0f1de9c5eb22bd6d100737cbe If somebody can understand that behaviour I appreciate everybodies help. Thank you with regards H.O. The QEMU used in RMPrepUSB is 32-bit only - it won't run 64-bit programs. Normally, Windows will just display an error message saying it needs a 64-bit system. Use Virtual Box for 64-bit OS testing and DavidB's Virtual Machine USB Boot application - see www.rmprepusb.com Tutorial #4 Hello, thank you for answering very fast. But in Google is advertised /"//RMPrepUSB/ www.rmprepusb.com/‎Diese Seite übersetzen Rating for /rmprepusb/.com .... 32-bit and /64/-/bit/ versions are fully supported. ... 2 /RMPrepUSB/ Help form screenshot (includes F11 = Run /QEMU/ emulator, and ... ‎Download - ‎Latest RMPrepUSB versions - ‎Easy2Boot - ‎47 - How to install Windows " is that correct and valid or not? Fully supported means to me, that qemu should work too on Win-7-64bit.. Or why does RMPrepUSB not change this at times of XP-64 bit, Vista-64 bit, Win-7 64 bit, Win-8 64bit, Win-8.1 64bit. Thank you with kind regards H.Ohlerth Am 30.04.2014 20:55, schrieb Steve Si: > The QEMU used in RMPrepUSB is 32-bit only - it won't run 64-bit > programs. Normally, Windows will just display an error message saying it > needs a 64-bit system. Use Virtual Box for 64-bit OS testing and > DavidB's Virtual Machine USB Boot application - see www.rmprepusb.com > Tutorial #4 > RMPrepUSB will run ON 32-bit and 64-bit Operating Systems. That is not the same thing as QEMU will run a 64-bit Operating System. There is a 64-bit version of QEMU but it is very buggy and won't even boot a 64-bit Vista/7 WinPE, so it is not included. As I said, normally when booting a 64-bit OS under QEMU, you will see a Windows message saying that the system is not a 64-bit system. For some reason you are not seeing this on your system. Hello Steve, I had a lot of trouble over the weekend building a sufficiently working bootable "USB-Rescue-Drive". I summed it up in an attached Word-Dokument and I am sure, you have the knowledge to solve my problems. For your detailed help I will expect with lots of kind regards H.Ohlerth Am 01.05.2014 10:40, schrieb Steve Si: > RMPrepUSB will run ON 32-bit and 64-bit Operating Systems. > That is not the same thing as QEMU will run a 64-bit Operating System. > There is a 64-bit version of QEMU but it is very buggy and won't even boot a 64-bit Vista/7 WinPE, so it is not included. > As I said, normally when booting a 64-bit OS under QEMU, you will see a Windows message saying that the system is not a 64-bit system. For some reason you are not seeing this on your system. > Looking through old bug tickets... can you still reproduce this issue with the latest (64-bit) version of QEMU? Or could we close this ticket nowadays? [Expired for QEMU because there has been no activity for 60 days.]