1. Unable To Find Mass Storage Controller Driver Windows 7
2. Windows Mass Storage Controller Driver
3. Unable To Find Mass Storage Controller Driver Download

• My mass storage controller is missing my sony vaio is missing a mass storage controller. I have a sony vgn-cr220e with windows 7 64-bit, i already downloaded every driver from the website. I ran the scan and my computer cant find it. If you could give me a link to a free download that will work i would greatly appreciate it thanks.
• Nov 19, 2015  How to Repair Corrupt USB Mass Storage or CD/DVD Drivers. I never found a way to delete them there much less how to paste the correct files to the driver; therefore, I.

The drivers for USB storage devices are pretty generic and typically the Windows USB Mass Storage Device driver does the trick fine. To point you to a more specific driver I would need the exact product number for the external drive.

Apart from the visible modifications adapted, Windows 8.1 raised its existing features to an extent. One of these latest enhancements is the optimized Power management feature. The settings of this feature are molded in such a way that the external devices attached to the PC become irresponsive, if not active for a specified time and it does have a certain reason behind this activity.

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Each of the modern time’s computing devices is specially designed to optimize its energy consumption. Microsoft has ensured to comply with this contemporary requisite in its latest version of operating system, Windows 8.1.

Unable To Find Mass Storage Controller Driver Windows 7

External devices that connect to a PC via USB controllers tend to intake a degree of electric charge. This keeps the device alive and active to correspond with the system. However, in Windows 8.1, when the device is not used or communicated within a specified timeframe, it enters a low power state. As a result, the device/drive does not show up in the connected devices, unexpectedly suspending the thread of a window browsing the USB device.

Many users have reported this issue as a system error and are in search of a perpetual solution. Let us show you how to get rid of this irritating Suspend on Idle feature. Although the actual fix is to be carried within Windows Registry, you would have to identify the hardware ID of your subject device, connected through USB.

Locate Hardware ID

• Plug in your device by inserting it into the USB slot
• Right click on Windows 8.1 Start button to bring up the Power User menu
• Locate and click Device Manager in the recorded settings
• In the listed categories of hardware, click to expand Disk drives
• (Note: Considering the instance of a USB storage device, we are tracing it under disk drives)
• Select your USB storage device
• While it is selected, go to View menu and list Devices by connection

• You will directed to a detailed list where you can see the device under USB Mass Storage Device node
• Right-click USB Mass Storage Device node and access it’s Properties
• In the Properties window, go to Details tab and choose Hardware Ids in Property field
• In the Value box, note down 4 digitvalues stated after VID and PID, respectively

Resolve in Registry

Windows Mass Storage Controller Driver

• Press Windows key + Run on your keyboard to open Run box
• Type regedit in the Run box and hit Enter
• Click Yes to confirm the UAC message and open up Registry Editor
• In the left pane of Registry Editor, expand HKEY_LOCAL_MACHINE to navigate following key
• SYSTEMCurrentControlSetControlusbstor
• Right click usbstor and choose New to create a Key under it
• Name this newly created key as the 8 digit value of VID and PID, noted earlier
• Right click this new key to create a New DWORD Value
• Name the value as DeviceHackFlags and double click it to Modify
• Choose Hexadecimal as the Base and put 400 in the field next to Value data
• Click OK to save your changes and Exit Registry Editor

Once you are done with the above procedures, disconnect your USB controller device and reconnect it after a while. From now on, you will not experience a suspended external device connected through USB, even if it is left idle for hours.

This is in Reply to Comfy (2)'s Post and Kiran Kishore's Post....

Unable To Find Mass Storage Controller Driver Download

I am having the same problem as Comfy (2) is having. My Western Digital 2TB drive had previously come up in My Computer and I was able to play video files off of it and everything, when my computer rebooted, is still is in my device manager and says its working ok but it is not showing up in My Computer any longer nor can I see its files. I have run the Troubleshooting Windows Software mentioned above and it says its working fine. Although I did notice that it is using Windows drivers, could that be a problem? Should it have its own driver from WD? I also can't update the driver as I am guessing its the latest one from Windows. I have tried everything that Comfy (2) has done. This computer is literally brand new a few days ago and is Window 10 x64 and the only other thing I can think of is that I think it is USB 1 or 2 the device but I have USB 2 and 3 USB Ports. Oh, and I don't get any error codes either, as its supposedly working.

I would greatly appreciate any support & Thank You in advance for your Time and Effort! Christine

Edit: I found out the problem through Disk Management, it is Offline: This drive is offline due to a 'Signature Collision', one or more drives has the same signature. In this can be corrected as Western Digital has this error and reply on how to fix it but not for Windows 10 only for Windows 8 & 7. I have a support ticket into them. Unlike Windows, it is very hard to find anything on their support site, basically when you put in a question even if its worded correctly the only answer that has any relevance is at the bottom of the page. I only mention that for anyone else looking that will go looking for this answer themselves. If you you have a Western Digital drive, download or start their Utilities Software and on the Diagnose Tab and the First Test says its good and the next two tests seem like they don't even run past the first green bar then fails it, go into your Disk Management, if there is a little yellow ! on it hover over it and it will tell you whats wrong with it. Hope this helps anyone looking for answers they can't seem to find when their drive is ok but, you can't see it in My Computer or see its files. Christine