I have a Dimension 9150, Intel Pentium 4/670, XP Home edition.

 

A blue screen appeared which said:

***STOP : 0x000000F4 (0x00000003, 0x89A86320, 0x89A86494, 0x805D11F8)

Beginning dump of physical memory

Physical memory dump complete.

 

When I switched the computer off and then on again another blue screen came up saying:

Drive unbootable

 

When I tried to turn the computer off again, as soon as I touched the on/off button once the computer rebooted as normal and so far has continued to do so.

 

I am worried what actually happened and why, could anyone explain, please?

 

Thanks