Hi, What has probably happened is the contact point for the button may have broken off over time or something like that so email Alcatel about and they should fix it. Thanks James
Hi, Try and email Xiaomi about it, it could be that a pin has bent in the micro usb connector or something to do with the charging port, so just email them about it and they should fix it. Thanks James
If it is just to log in to windows, search on the internet for your version of windows and just download a trial version, and install that and activate with the product key on the laptop. If it is when you power it on straight away then you will probably have to clear the bios or something like that