Windows 7 does not recognize my 3 Seagate external drives but is very good with Western Digital and other sticks USB Flash. Windows Vista will see them.

My apologies if this is a query repeatedly, but I can't find a job anywhere and he leads me into the wall.

I have 3 external Seagate hard drives. All 3 range from about 3 years 11 months old, 1 TB - 3 TB of capacity, and I use them all from time to time to back up my media. In the past months, my Dell XPS ceased to recognize them, 95% of the time. Sometimes they will be Plug and Play and be fine, but otherwise the result when I plug them is coming the power light and the whirring disc fortunately but nothing on the laptop. They recognized themselves on my other machines running Vista. All other Flash memory devices are very good.

I also have a hard drive Western Digital external powered, almost identical, that Plug and play every time.

I tried all my ports and various cables and adapters. I tried them on other machines and they are very good, it seems to be just with my Dell and the Seagates. It recognizes everything that I plug in there from the iPhone to Flash Drives. It has all the latest drivers and Windows updates.

When they're not working, they do not appear in the devices, disk management, Explorer or UVCView Manager. When they do, all settings appear to be well. My laptop runs Windows 7 Edition Home Premium with Service Pack 1.

I assigned each their own letter drive, disabled power management and they are not protected by Word. The drivers are the standard Windows ones, because these devices do not use their own. I have the latest chipset drivers, everything works perfectly and is completely up to date.

When I run UVCView (when one of them does not work), it is said there is an error autour MaxPacketSize, current externally is set to 9 and it said "ERROR: low peripheral speed require bMaxPacketSize0 = 8" branded error. I don't know if this is a factor? This may explain why it's slower transfer data to my machine that has USB3.0 it does on another machine, it begins at 130 MB/s and falls to 30 in 10 seconds.

I tried all combinations of power off.

I activated the network detection.

I uninstalled all the USB in the Device Manager and reinstalled after the start.

All 3 discs work instantly in my older Vista laptop runing.

I am a loss to understand. I'm pulling my hair out and I don't have a lot to lose these days! There must be a setting in my computer or on the Seagates but I checked all the usual places and some of the more irritable areas.

Thank you in advance.

I'm surprised that the removal of the INFCACHE did not work.  Readers (all external references in fact) were cut at the time, right?  With a reboot after and before you plug anything back?
 
These instructions really come down to:
 
Unplug all USB devices other than the keyboard and mouse
Open C:\Windows\System32\DriverStore
INFCACHE.1 and rename it INFCACHE.old
Restart the computer
Reconnect it (one at a time) each USB device - giving the system about 30 seconds per device to 'catch up '.
 
If you got on the rest as well your system files are good to go.

Tags: Windows

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