Wireless stick continuously disconnects on USB

I’ve just come back to use my 64GB wireless connect after a few months, it appears to have charge in it but I’m not convinced. I also am having the same problem with it dropping off USB. On my personal windows 10 creators machine (core I5 vaio trying in both USB2 and USB3 ports) it is detected and “ejects” before I can even interrogate it.

I’ve brought it into work to test on a Lenovo thinkpad also windows 10 but not creators, and it is visible but after 10-15 minutes it “ejects” itself and then a few minutes later redetects and opens in explorer.

I tried it in the PC as it was consistently dropping connections with my phone on wireless, but as I have a new phone I’m not sure that was connected.

I’ve had the device a coupel of years now and up until this occasion it’s been fine every time I’ve used it. My last use was on my older phone about 4 months ago.