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File Version : 1, 0, 0, 0
Description : UsbQa
Copyright : Copyright (C) 2006 Ralink Technology, Corp
Product Version : 0, 0, 2, 0
Product Name : RT2860USB_QA
Company Name : Ralink Technology, Corp
Internal Name : UsbQa driver
File Size: 21760 byte(s) 21.256 KB
MD5 : 699aca4efaf8f4df80260a70213ad0dc
SHA1: C85619406FDBBE65712699DA139FD816EE75E2CE

Download roxv4.sys
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How to Install roxv4.sys
Repair Sys ProblemsFixing a corrupted or missing roxv4.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.