Windows 10: Unable to see SOME usb drives

I have just set up a new HP Envy laptop. I am left with a strange problem about which I am very mystified.


I have at least 6 portable drives including a thumbdrive, a WD portable, 3 satas in caddies and 1 ssd in a caddy. All of these are seen immediately on my old desktop.


On my new laptop only the thumbdrive and 1 sata in a caddy is seen. The rest just sit, powered but not communicating. I worked with HP support and we erradicated hardware problems. HP installed a new intel driver (dated 07/2018). We also installed Windows 1809 to try to solve it but no change. I have swapped cables and caddies and ruled out problems there.


So 6 drives read by an old desktop but only 2 of them seen by a new HP


Are there any suggestions where I could look for a solution


THanks in advance

:)

 

Unable to see info on USB drive

Check if the drive is assigned a drive letter.

Press Windows key + X

Click Disk Management

If you see your drive listed there, but no drive letter, right click it

Click Change Drive Letter and Paths

Click Add

Click Assign the following drive letter

Click in the Drive letter list box

Choose a drive letter - try choosing letters near the end of the alphabet

Click OK

Click OK again

If that does not work...

Press Windows key + X

Click Device Manager

Expand Disk drives

Right click the external drive

Click uninstall

Exit Device Manager, restart then check if its detected.

OR

Step 1. Press Windows key + R to open the Run dialog

Step 2. Type regedit and press Enter

Step 3. Navigate to the following path:

HKEY_LOCAL_Machine > SYSTEM > CurrentControlSet > Services > USB

Step 4. If the USB key does not exist into the list, then create a new key USB under Services. Now create a new DWORD value under the key that you’ve just created

Step 5. Keep the USB key selected and right-click on the blank space at the right pane

Step 6. Select New > DWORD value from the context menu

Step 7.Rename this newly created DWORD value as DisableSelectiveSuspend

Step 8. Right-click on DisableSelectiveSuspend and select Modify

Step 9. Put 1 in Value data field and then click OK

Step 10. Reboot your PC

 

Unable to connect USB Hard Drives to laptop

After having connected a
Sisun HDD docking station to my Sony Laptop , Windows Explorer refuses to recognise any USB hard drive (although other software such as a disk utility can) and I am therefore unable to save files to these drives. Windows does recognise some USB pen drives
but larger HDD are not recognised. To date, I have;

• Uninstalled the USB controllers through Device manager (forcing Windows to reinstall them on reboot); and
• Run both the WinUSB and DeviceDiagnostic software to no avail.

I'd rather not do a clean reinstall of Windows as I am unable to backup my files. Any other suggestions?

 

help. USB drive isn't assigned a drive letter.

Any usb flash drive I plug into my computer isn't assigned a drive letter. The physical drive shows in the "safely remove hardware" but it doesnt show up in disk management. I have tried to populate the volume thru the safely remove hardware properties window and it does pop up in the list but it doesn't stay there. This isn't a format or assign a letter problem. It's more complicated then that. Maybe one of the services needed for usb drive management was disabled? Suggestions needed. btw external usb harddrives work fine.