Can not start VB after installation

[otropablo]

Hello!

I've already installed the 7.2 version of debian (debian-live-7.2-i386-gnome-desktop) in Oracle Virtual Machine with windows 7 as host in a portable computer. Apparently the installation finishes without erros, but I can not start the VM. the error message I recive is:
"a critical error has occurred during the installation of the virtual machine"
I have tried to reinstall the VM and also to resize the virtual disk. Is not my first time using virtual box but I have never tried before in a portable computer. I don't know if that makes any differences. Could anyone help me?

Log files are attached.

Thank you!

[mpack]

00:00:09.455760 Console: VM runtime error: fatal=true , errorID=PAEmode message="The guest is trying to switch to the PAE mode which is currently disabled by default in VirtualBox. PAE support can be enabled using the VM settings (System/Processor)"
00:00:09.455931 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
00:00:09.455932 !!
00:00:09.455932 !! Guru Meditation -365 (VERR_DEADLOCK)
00:00:09.455947 !!
00:00:09.455994 !!
00:00:09.455994 !! {mappings, <NULL>}
00:00:09.455996 !!

You are to be congratulated for being one of the few first time posters who provides adequate diagnostics (log file, screenshots) without needing to be prompted.

However... one improvement you could make in future is to upload log files as compressed (.zip) attachments. That way you don't have to upload them in fragments, and you also don't waste storage space on the server. I've done it for you this time. Also, I know what the generic error dialog tells you, but there's really no need to post blank screenshots.

[otropablo]

Thank you very much for your help and for your advices. Actually it's my first time using forums and I've realised how usefull it is.