Reinstall Windows 10 Without Deleting Your Software, Files or Settings: Perform an ‘in-place upgrade’ to fix a buggy Windows installation
Quote: About Lithium-Ion battery: “Whether used or not Batteries need to be at least 40% CHARGED for Several HOURS every month.
. Batteries are not warrantied for more than 1 year.
. Batteries last between 300 to 500 cycles or 1 year on the shelf.
. If you do not charge them over a year they will die.
When one has the internet access on his mobile phone (such as via the iPhone data plan or Wi-Fi access), he could possibly also make his Mac computer (or a Windows PC) access the internet service using his existing phone’s data plan or Wi-Fi service; this configuration is known as “tethering”.