Cannot update to Windows 8.1
I have a Toshiba Satellite that I bought about 4 years ago. I had a problem with my machine a few months ago and had to reset it to the time that I got it. When I bought it, it had Windows 8 installed, and then I successfully upgraded to Windows 8.1. When I reset it, however, it went back to Windows 8, but now I cannot install windows 8.1, it says that there has been a problem and cancels it. My System Properties says that I have windows 8, yet I remember finding a page somewhere that said I still had windows 8.1 installed on it, so there must be a bug or something (unfortunately I do not recall the page, and am having trouble finding it)
Has this happened to anybody else? It keeps yelling at me to update to windows 8.1 yet won't let me!
Thanks in advanced