Windows 10: Losing Seagate drive

When I first turn on my Dell XPS 2720, the attached Seagate hard drive is visible, i.e. I can access through File Explorer. During the day I lose contact and the only way I can reconnect is by switching off the drive and repowering. This immediately re-establishes the link.
Help please, is there a way of reconnecting without powering down?
Is this particular to this make of drive, or a common issue? Sorry if this post shows up any lack of knowledge of the OS on my part.

:)

 

How do I clean up my drives

I have 5 drives that over the last year I have changed out motherboards and cpu and redone my computer so many time but two of my drives i have just kept moving them around never wiping them just adding to them and they have all kinds of pictures and things
like that I dont want to lose but everything is getting so full of all the stuff I've put on and took off that its just a big mess and I don't know how to clean it up with losing the pictures and things that i cant replace. someone help. one drive is a
2 gig seagate SSHD and the other is just a 1gb seagate 7200 rpm But like I said the pictures I cant lose.

 

Transferring OS from external HD to brand-new pc

I'm about to buy a new pc and I don't want to lose all my browser bookmarks and saved passwords. If I save the C- Drive to my Seagate external H.D. and then transfer it to the new pc, will things function as they do now, or will it still make me lose
all of that info and have to start from scratch? Thanks.

 

Click on the search icon and search for Control. Click on Control Panel (desktop) to see the classic Control Panel. Then click View by Large icons to see all controls. Click on Power Options. Click on Change plan settings on the selected plan. Click on Change advanced power settings. Scroll down and find the USB settings. Expand it and then expand USB selective suspend setting. Make that disabled to see if there is any improvement. In case that you USB port cannot deliver enough power to your hard disk, try using a powered USB hub and you shouldn't have any other problem.