Drives Monitor

Drives Monitor utilizes Performance Monitor data to visualize physical or logical disk activity. For each physical/logical disk, % active time and bytes read and written per second is displayed. It does not require any 3rd party applications. Resizable! Save settings to file. (File will be created - Path: %APPDATA% File: gadgetname_Settings.ini). Two modes. Color changeable for all gadget's elements, including the background color.

* Shows % active time and bytes read and written per physical/logical disk
* Logical partitions on the same disk are grouped
* Automatically reconfigures if disks are added or removed
* Allows for excluding certain drive letters or numbers

Note: If you see error message: "No WMI info" it mean that base performance counters on your system corrupted for any reason. For fix this do follow:
Solution 1.
1. Click Start, expand All Programs, and expand Accessories.
2. Right-click Command Prompt, and then click Run as administrator.
3. At the command prompt, type lodctr /r, and then press ENTER.
Solution 2.
These counters can be disabled in the registry. Just set
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Perfdisk\Performance\Disable Performance Counters to 0 and reboot.
Some details see here

Special features

You can safely remove your USB drives from gadget. If drive detected as removable you can see special icon - . When mouse over on this icon, cursor was changed to . Click on icon and your USB drive will be removed, if possible.
Click on gadget's title or disk drive's letter (number) for open flyout window with additional information about drives, click again - close flyout window.
Click on background show appropriate disk in Explorer.