Hi all, I did the upgrade and all went well, it took forever with the windows updates but thankfully all seems good. I would of liked to have done a full clean install and wipe the disk completely clean, but I was not sure if I ran into problems I would be able to revert back even though I had backed up the recovery drive to a usb stick. As it was not my laptop I did not want to leave the guy without an operating system, but now as I have spoke to him we have agreed we will try this if he runs into problems again. I am still not sure what the real issue was corrupted files or a dodgey hard drive, I ran a few diagnostic checks but stange as it may seem I could not get check disc to run at start up or Hirens boot disc to boot, yet memtest ran no problem, ity all just seemed to be a bit buggy. Anyway he has his laptop back with windows 10 on it, if he is happy then alls good if not I will delve deeper. thanks for the help