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File version :
Description : USB Mass Storage Driver
Copyright : Copyright (c) 2001 Advance & Wise Technology Corp.
Product Version :
Product Name : Mass Storage Drive
Company Name : Advance & Wise Technology Corp.
Internal name : USBDSC21.SYS
File Size: 15744 byte(s) 15.384 KB
MD5 : 0b2fd59ff331a9a41ad07e581548e42b
SHA1: 8DF5B961B4DFFE4A7D70D0737DC011CD38A8147E

Download usbdsc21.sys
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How to Install usbdsc21.sys
Repair Sys ProblemsFixing a corrupted or missing usbdsc21.sys error is an easy process with a few steps. Open the zip-file you downloaded.Extract the .sys file to a location on your computer. We recommend you to unzip the file to the directory of the program that is requesting the file.
If that doesn't work, you will have to extract the file to your system directory.
By default, this is C:/WINNT/system32/drivers (Windows NT/2000).
or C:/Windows/system32/drivers (Windows XP, Vista, 7).
Make sure overwrite any existing files (but make a backup copy of the original file)
That should be it. Although not necessary you can reboot your computer as well.