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  1. #1
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    Default Can't load Windows Defender

    I can't load Windows Defender on my laptop. It says the app has been turned off. I don't think it's ever been turned on. I do have McAfee Antivirus loaded. Should I unload it? Intel Core 2 Duo 2.4 GHz, 3 GB RAM, Windows 8.1 Pro - 32 bit

  2. #2
    Member Spyware Fighter zep516's Avatar
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    Hello,

    If you choose to install any other real-time anti-virus program (such as McAfee Antivirus ), Windows Defender will be automatically turned off (Windows 8.1). We don't want two Anti Virus programs running at the same time. You're protected fine with McAfee. Windows Defender is somewhat different on Windows 8.1 where it actually provides real time Anti Virus protection and does not do that on Windows 7 or XP. Any Anti Virus program you install on windows 8.1 will turn off Windows Defender.

    Joe

  3. #3
    Member Digerati's Avatar
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    This is another example of Microsoft creating confusing with their program naming schemes where different programs use the same or similar names (like Outlook, Outlook.com and Outlook Express). There are currently two programs called Windows Defender out there and they are very different. The older Windows Defender is an anti-spyware only program and it will run on all versions of Windows up to and including Windows 7.

    As Joe noted, Windows Defender in Windows 8.x is a full anti-malware program and is actually a slightly modified version of Microsoft Security Essentials, but rebranded with the name Windows Defender. WD in W8.x protects from all forms of malware, including spyware and as noted, will disable itself when another antimalware solution is installed.

    If you are looking for a good supplemental program to make sure your system is clean (and everyone should have one), I recommend and use Malwarebytes's Anti-Malware (MBAM). It is designed to work along side your other scanners without causing conflicts or wasting system resources.

    BTW, if McAfee is bogging down your system and/or you are tired of paying for something you really don't need, I recommend Windows Defender on your W8 systems. I use it, along with Windows Firewall on all my W8 systems (and Microsoft Security Essential and Windows Firewall on my W7 systems) and have had no problems.
    Bill (AFE7Ret)
    Freedom is NOT Free!
    Heat is the bane of all electronics!
    MS MVP, 2007 - 2018
    ─────────────────────

  4. #4
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    Thanks! I removed McAfee and Windows Defender started loading.

  5. #5
    Member Spyware Fighter zep516's Avatar
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    Hello,

    We should check to see if McAfee uninstalled correctly a lot of times it leaves files behind, so if you get a moment post these 2 log reports.

    Please download Farbar Recovery Scan Tool and save it to your Desktop.

    Note: You need to run the version compatible with your system. If you are not sure which version applies to your system download both of them and try to run them. Only one of them will run on your system, that will be the right version.
    • Right click to run as administrator (XP users click run after receipt of Windows Security Warning - Open File). When the tool opens click Yes to disclaimer.[/*]
    • Press Scan button.[/*]
    • It will produce a log called FRST.txt in the same directory the tool is run from.[/*]
    • Please copy and paste log back here.[/*]
    • The first time the tool is run it generates another log (Addition.txt - also located in the same directory as FRST.exe/FRST64.exe). Please also paste that along with the FRST.txt into your reply.[/*]