Windows 10: My D:\ disk has a blue question mark on it and i can't open it at all

So i tried to do CHKDSK but it shows me a message like"Access Denied as you do not have sufficient privileges or the disk may be locked by another process. You have to invoke this utility running in elevated mode and make sure the disk is unlocked."there are files i wouldn't wanna loose in there if it's possible please help.

:)

 

D Drive- Blue question mark

Hi, I attempted to open/save to my thumb drive. However, my D Drive suddnly does not show; rather there is a blue question mark appears next to D:\\. Does with all thumb drives I attempt to open. Can you please advise? Thank you.

 

Internal D drive has a blue question mark.

how to fix blue question mark on internal D drive. I tried running chkdsk /d in command prompt but it says invalid input. I also tried finding the drive in device manager and it shows the drive but it is grayed out. sometimes it is not grayed out and when that happens, the blue question mark goes away but the computer gives me an error when I try to open the drive, then the blue question mark comes back and device manager show it grayed out again.

 

Blue question mark over my hard drive?

i checked the disk management and when i opened it there's something about disk 0? im not sure if thats the (D drive that was having the blue question mark. under the this pc, its there but i cant open it.

after that i shut down my pc and opened it up again it got fixed but after opening a game that is installed in the disk, a few mins later the game closed and theres that blue question mark again. i tried the Regedit thing then shut down and opened the pc again
it got fixed again but im not sure if it might happen again??? im sorry if my explanation is a bit confusing..