Operating System Not Found



So, I have been so fortunate to be granted the extraordinary honor of fixing this lovely Acer Aspire 5050.

When it loads it writes:

PXE-E61: Media test failure, check cable
PXE-M0F: Exiting PXE ROM
Operating System Not Found

Okay, so I begin investigating and eventually find the guide here:

I have now tried step 3 but without success and I ventured onwards to step 4.

Failes here: bcdedit.exe /import c:\boot\bcd.temp

Last edited:


Distinguished Member
Hi Lundorff.
Do you have multiple HDDs in the problem computer?
If so, disconnect all but the one with the OS on it, then do the Startup Repair again 3 times.

And, I'm assuming the OS is Vista or Win 7? If not, then obviously you should not be trying to recover the Vista bootloader...:wink:
BTW, that error looks like it could be a problem with your hardware, not the actual boot itself.


Hi, in the boot sequence in the bios there are 2 IDE's listed, so I will try to disable one of them (this is a laptop (unfortunately) and I have no manual access do the hardward.)

And yes it's Vista (32-bit) ^^ And yes I suspect that at least one of the disks have broken down.