Specific game unmounting HDDs

I'm unsure of the particular field this should be posted on, but here goes...

I have several HDDs in my desktop, 2 of which are shown as removable (i think hotswapping thing) and this has been of no problem for a lot of use for quite some time, so it never bothered me.

Now i recently installed a game called AION onto one of the non hotswappable drives (note that all drives are internal SATA) and for this game alone (i have tested many others over time, and tested AION several times with this happening each time) i get the sound of a device being removed, and the 2 hard drives that show as being removable get unmounted.. this can only be solved by a reboot in which they are back as normal, until i launch AION again,

Drives have been tested with surface scans, stuff like that. Can't really find anything on this, and as to why it is this specific application causing the 2 drives to unmount and require a reboot to "remount".

Again, all HDDs are of good health, and maintained well, well ventilated, all that stuff.

I just dont know why this particular application of all of them would cause this to happen.

any advice or insight would be much appreciated thankyou all!

Tried changing HDD to IDE in BIOS which caused BSOD so i switched back
Another note is my computer doesnt shut down properly after this occurs, requiring a hard reset at power. Nothing else seems to be a problem, just with this one application causing all this. device manager shows nothing out of the ordinary

Is there anyone that has any idea what i should do or what is happening?

Please anyone have any clue? or could suggest a way for me to problem solve this myself?