OKay, so there have been MANY MANY reports on this topic.
Currently Toshiba is working on finding a fix, and some Satellites do take the the Win10 upgrade with no issues.
But this issue stems form the fact that the Toshiba satellites were originally designed for Windows 8, and when Windows 10 was offered for free, everboy jumped on it. But that causes an issue, because Toshiba was not expecting that. So that left them behind the 8 ball, trying to rewrite all their hardware drivers for all their computers that are out there.
This is a grand task even for a giant company.
Need less to say, the only thing i can tell you, is one of a 50/50 chance.
Now, I can only even begin to attempt to fix this issue by connecting to yoru ocmputer, and checking settings, drivers, updates, etc etc.
Once all has been checked and the appropraiate drivers are installed and any KNOWN updates that cause issues are removed....if it still does not work, you will be forced (along with so many others) to submit this as a technical glitch to Toshiba, for a fix to be worked on.
If you would like to continue, I have to say, that even trying to help you will cost me time and effort, and even though we may NOT end up fixing the issue, we will have done all we can.
If you agree to atleast pay for this question, then we can continue.
If we do fix the issue, then this question AND the remote service will need to be paid.
So its up to you if you would like to continue.
I understand if you dont.