Windows 10 Upgrade an ASUS Laptop (32G storage)

Yes, you are correct, that is the way that it is supposed to work, and most often does. However, some devices have been having a problem with the twice yearly Feature Updates (upgrade installs of the new version). If a device has only one USB port, and that is also how it charges, then the SD card (or a special USB hub that can charge the device and also transfer data from the additional ports) is the only other option, that is were the problems come in, on some device configurations. This problem has been popping up with each of the last Feature updates, on some devices.

-Richard

Yes if a tablet only has one Micro USB port... which is both for charging and external drives, then that is an issue.

But if you have an OTG cable adapter for that port then you can connect a flashdrive and maintain charging at the same time.

Yes, for example, either one of these two seem to be a popular choice these days, depending on what one is looking for.

USB 2.0

https://www.amazon.com/Adaptor-Charging-Adapter-Raspberry-Android/dp/B00LTHBCNM/ref=sr_1_3?ie=UTF8&qid=1518246800&sr=8-3&keywords=usb+otg+charger&dpID=41OEKvnIk6L&preST=SY300_QL70&dpSrc=srch

USB 3.0

https://www.amazon.com/UGREEN-Adapter-Android-Macbook-Ultrabook/dp/B00Q2ONMKI/ref=pd_sbs_107_7?_encoding=UTF8&pd_rd_i=B00Q2ONMKI&pd_rd_r=RSXTS90CYZ1GJWHDZFG3&pd_rd_w=us4mV&pd_rd_wg=KxDNr&psc=1&refRID=RSXTS90CYZ1GJWHDZFG3

-Richard

We have the same issue with our Asus e200ha netbook. It has an internal 32GB solid state drive and a micro SD expansion slot into which we have inserted an additional 64GB card.

Windows can see the additional card and it has a drive letter but the auto update won't make use of the extra space.

The only software installed on the internal 32GB of memory is Windows itself so we can't delete anything else and we still don't have enough space, even after running the disk space cleanup.

We have the same laptop and are experiencing the exact same issue.