|Compatible OS:||All Microsoft® Windows® Operating Systems|
|Recommended:||Free Scan your computer for related errors|
1. The first item could help you fix this error is to have your Microsoft® Windows® Operating System you are running updated as system Administrator:
1-1. Please press down the Windows key on your keyboard; then enter Run section;
1-2. Please copy wupdmgr Windows command prompt and then, paste that prompt line into the blank you see; confirm running that command you entered, your default web browser will then lead you onto Microsoft® Windows® Update page, you may be noticed that you need to install Microsoft Windows Component Publisher ActiveX. You need to have that ActiveX installed quickly or your Windows Internet Explorer will be then closed;
1-3. Then after those patch for your Windows downloaded and then, automatically installed, you may would be asked to reboot your machine - before you do that, please save your personal files and properly shut down those Windows apps running.
1-4. Meanwhile, you are also suggested to upgrade your Anti-Virus software installed on your Windows to help you avoid similar errors and virus.
1-5-1. Just couldn't open that Update page from Microsoft® Windows®?! Then please right click My Computer icon on your desktop, pick Properties item to run.Then please click Automatic Updated tab, tick Automatic (recommended) option; then press down Apply button and then the OK button to quit System Properties window. Then you need to press F5 key or Ctrl + F5 key to reload MS Update page.
1-5-2. You can also try this Turn on Automatic Updates section provided by Microsoft® to help you fix the error.
2. For most Windows .DLL or .exe error you encounter, including this sfc_os.dll, you can then try to reinstall that software to fix related error when you were trying to run, open some application you installed. Or your attempt to reboot your machine can help you fix the error then!
Note: please try to completely uninstall the problematic software which may be the cause of the error, including those folders and Windows Registry entries related to that app left in your system before you try a new installation.
3. Apply a security check as system Administrator via running your Anti-spyware software in Windows Safe Mode to clean some potential cyber threats to fix sfc_os.dll error.
4. Search and then download a new sfc_os.dll from Web via using your Google Chrome or Mozilla Firefox with McAfee SiteAdvisor security plugin installed - this would help you detect, prevent those malicious websites coded or inserted by some backdoor, Trojan horses and so many others before they get into your system to help you cease the error. Then please scan that downloaded file again using your antivirus software installed. Safe? Then cut that file, replace the older or problematic file located in the installation folder of that application as system Administrator, this is a common solution to the error
5. Furthermore, you then need to check your Windows drivers you installed to fix those items (listed on Device Management) with a yellow question mark.(Tip for your running Device Manager: Windows log key + R, then enter devmgmt.msc item); if so, you should try to uninstall those problematic items, then re-install or run update order via right clicking that item after you reboot your device - this would also help you to fix sfc_os.dll error
6. Please firstly move/cut the corrupt sfc_os.dll onto other disk, or folder. Then run Recovery Console command as system Administrator: please get a Windows installation CD; insert it into your CD-ROM/DVD-ROM device; run it as system Administrator; please save and run this "cd %systemroot%\system32" command line (without quotes) -> run this line, ren USER32.DLL USER32.BAK -> then type and run this line, expand [type the CD drive name you own]:\i386\sfc_os.dll %systemroot%\system32 /Y
7. Please run System File Checker tool as system Administrator to restore the incorrect file and some other associated file, which would also help you with the problem.
7-1. This help page is for those users running Microsoft® Windows® XP and Windows Server 2003 Operating System to fix sfc_os.dll error.
7-2. This guide is for those people running Microsoft® Windows® Vista Operating System.
99% of all computer problems are solved by rebooting. However, rebooting repeatedly will get you nowhere. Please follow the instructions below to fix Windows errors and get your system back to work properly.
To completely remove sfc_os.dll infected virus, please follow the removal instructions below.
Note: the illustrated removal steps below are proven to be very effective to completely remove sfc_os.dll virus and fix the errors caused by this sfc_os.dll infected virus. Please take cautions and follow the steps carefully.
Malware, or malicious software, is a class of software designed specifically to wreak havoc on a computer—your computer. Malware includes such nasty entities as viruses, Trojan horses, worms, and spyware. There are actually people who stay up late trying to dream up new ways of screwing up your PC, and apparently, not one of them can spell. A virus is a program or piece of code that "infects" other software by embedding a copy of itself in one or more executable files. A worm is a special type of virus that can infect a computer without any help from its user, typically through a network or Internet connection. A Trojan horse spreads itself by masquerading as a benign application (as opposed to infecting an otherwise valid file), such as a screensaver or even, ironically, a virus removal tool. A rootkit is a form of malware designed to conceal the fact that your computer has been infected. Spyware is a little different than the aforementioned viruses and worms, in that its purpose is not necessarily to hobble a computer or destroy data, but rather something much more insidious.
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