Ok, you may have opened the eagerly awaited Windows 10 upgrade and tried to load it onto your creaking Windows 8 PC?
By now you will have figured that it has crashed your PC or at best disabled your graphics card or Mouse perhaps?
Our advice is to wait. Even our experts who have been using the beta test version for months have experienced problems with the final release code.
Buying it on a pre-configured Windows 10 PC is one thing, installing it onto an existing PC is another.
Microsoft usually offer free online help with new release versions but this could involve you in hours of wasted time and money which could have been used to buy a pre-configured PC!