Windows 8 Upgrade

[Alicat58]

I have a Toshiba Satellite laptop which I bought earlier this year with Windows 8 already installed. It has a 500gb hard drive which is 75% free.
I have been trying to install the free upgrade to Windows 8.1 from the store but it downloads to 51%, says 'preparing your computer', then the status bar just drops back down to the beginning. I have tried this several times and get the exact same result.
Can anyone advise me about this problem?

[Prudie]

I'm no expert but what's your broadband speed like? Mine is so slow that an Office upload ran all night and still didn't install. I took my laptop to work and it took 15 minutes!

[Alicat58]

I have a fibre connection with average speed of 35 mps so this is not the problem.

[galeck1947]

Before you try to upgrade to Windows 8.1 make sure that the existing Windows 8 is fully updated and also I would run a repair on windows updates just to make sure all is ok. To download the upgrade a fast internet connection is best as the download is quite substantial.

[Alicat58]

Tried all the above so I think I will have to contact Toshiba for advice. Thanks for suggestions folks.