A:AnswerAccording to Microsoft Support, you can use an external hard drive, formatted NTFS, when downloading Windows 10 updates for the needed temporary files. Here is a link to an explanation:
https://support.microsoft.com/en-us/help/4013876/windows-10-freeing-up-space-to-install-latest-update. The IdeaPad 120s-14 is not upgradable.
A:AnswerYou should receive an email from Best Buy within a few days of purchase. Once downloaded, it's good for 1 year. As far as the time frame, it should be noted in the email, if not, it's best you download it asap.
A:AnswerNo. Unless you use a lot of flash drives, there is not enough memory for storage. Also, this computer won't hold the Windows updates unless you have a lot of external storage. I had to return mine because Windows kept trying to update, so I couldn't get into the computer to do anything.