It is getting to the point where it wants to load Windows.
Before it gets to this point we should be able to get to the recovery console. (If it exists)
Try this again please:
Switch off > then hold down the Zero ( 0 ) key. Keep this help down and switch on.
Keep the zero help down until something happens.
What happens when you do this?
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Another option:
On your mum's laptop .......
Start > All Programs
Is "Recovery Disk Creator" or similar available?
or try....
Start, All Programs, Maintenance, Create a Recovery Disc.
If your mum has not created her Recovery Disks yet - it should be there.
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Give Toshiba a ring and ask about recovery disks for your machine
Phone 0844 847 8944
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We could try copying your mum's winload.exe file and replacing yours with the copy.
This is easily done.