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File Version :
Description : VirtualBox Video Driver
Copyright : Copyright (C) 2009 Sun Microsystems, Inc.
Product Version :
Product Name : VirtualBox Guest Additions
Company Name : Sun Microsystems, Inc.
Internal Name : VBoxVideo
File Size: 57680 byte(s) 56.336 KB
MD5 : 9fb431ba75fc6d63fb4ea391b4588433
SHA1: 8C2E829BDECEB867605857C01FB2897D12F9F5E6

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