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File Version : 5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)
Description : PCI IDE Bus Driver Extension
Copyright : Microsoft Corporation. All rights reserved.
Product Version : 5.1.2600.2180
Product Name : Microsoft Windows Operating System
Company Name : Microsoft Corporation
Internal Name : pciidex.sys
File Size: 25088 byte(s) 24.512 KB
MD5 : 520b91ab011456b940d9b05fc91108ff
SHA1: 3F7E938CF8E02698448F7BBCB6CB024C46970584

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