Windows can't recognize USB device at start up

nova1566

New member
Local time
8:45 AM
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10
I have two USB expansion drives. They have permanently been assigned drive letters (Y: and X: ) This is so they can be removed and then plugged back in to maintain the pathways for other files and programs.It was working fine and then one day not.
At start up, Windows can only see an "unknown device" for drive X: and can't load the drivers. It's OK with Y: . I have deleted and reinstalled the motherboard and window drivers, but that did not change anything.
I can unplug the drive and plug it back in, and the drivers load and it works fine. This is annoying behavior and I don't want to do this every time. Any thoughts. thanx. nova1566
 

My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
custom build
OS
Windows 7 Home x64
Graphics Card(s)
nvidia 520
Antivirus
avg
Browser
firefox

My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
Custom Build
OS
W7 Pro x64 SP1 | W10 Pro IP x64 | W8.1 Pro x64 VM | Linux Mint VM
CPU
i7-4790k @ 4GHz (4.4GHz Boost)
Motherboard
ASUS Sabertooth Z87 (BIOS Rev 2004)
Memory
16GB DDR3 Kingston HyperX Fury @ 1600MHz CL 9-9-9-27
Graphics Card(s)
EVGA GTX 980 Classified
Sound Card
Realtek Onboard
Monitor(s) Displays
Samsung S27D390
Screen Resolution
1920 x 1080
Hard Drives
240GB Intel 520 Series SSD |
Samsung 850 EVO 120GB SSD |
2TB WD Caviar Black |
2TB WD Caviar Black |
2TB WD Caviar Green
PSU
Corsair HX850-80 Gold Modular
Case
Cooler Master Silencio 650
Cooling
Corsair H80i w/2 x Corsair SP120 | 2 x 120mm Noctua NF-S12B
Keyboard
Microsoft Sidewinder X4
Mouse
Gigabyte M6900 optical
Internet Speed
152mb
Antivirus
F-Secure
Browser
Firefox 38.0
Other Info
Backup Rig: Win 7 Pro 64-bit | AMD A10-5800k | ASUS F2A85-V Pro | 8GB Samsung DDR3 @1600MHz | 120GB Toshiba SDD | 2TB Seagate HDD | Cooler Master Silencio 550
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