Windows Defender djeluje kao prva linija obrane od bilo kakvog zlonamjernog softvera, špijunskih infekcija koje su mogle utjecati na vaše računalo. Microsoft pruža ovaj besplatni anti-malware program korisnicima koji koriste Windows 10/8/7/Vista . Omogućuje krajnjim korisnicima da zakažu skeniranje ili ručno pokrenu brzo, potpuno ili prilagođeno skeniranje.

Međutim, ponekad korisnik može imati problema s omogućavanjem aplikacije Windows Defender u sustavu Windows^(Windows) . Možda će otkriti da je njegov Windows Defender isključen ili da ne radi. Također, ako se vaš Windows Defender automatski onemogućuje - svaki put kada pokrenete svoje Windows računalo ili u bilo kojem trenutku nasumično dok radite na računalu, evo nekoliko stvari koje biste možda željeli istražiti.

Ovaj vam članak objašnjava postupak rješavanja problema kako biste ga riješili .

Windows Defender je isključen ili ne radi

Možda ćete dobiti poruku: Windows Defender je isključen i ne nadzire vaše računalo.^{(Windows Defender has been turned off, and it isn’t monitoring your computer.)}

Ako imate instaliran drugi antivirusni softver, isključit će Windows Defender . Ali ako to ne učinite, a ipak, možda biste trebali provesti sljedeće korake za rješavanje problema:

1. Instalirajte najnovija ažuriranja sustava Windows
2. Ponovno instalirajte sve antivirusne programe treće strane koje ste možda instalirali
3. Pokrenite izvanmrežno skeniranje zlonamjernog softvera
4. Omogućite Windows Defender putem akcijskog centra^{(Action Center)}
5. Provjerite status usluge Defender
6. Ponovno registrirajte ove DLL datoteke
7. Provjerite postavke registra
8. Izvršite^(Perform) provjeru dosljednosti na WMI repozitoriju.

1] Instalirajte najnovija ažuriranja sustava Windows

Provjerite imate li instalirana sva najnovija ažuriranja sustava Windows^{(Windows Updates)} , uključujući najnoviju verziju Windows Defendera^{(Windows Defender)} i njegove definicije.

2] Ponovno instalirajte^(Reinstall) bilo koji antivirus treće strane koji ste možda instalirali

Jeste^(Did) li nedavno deinstalirali neki sigurnosni softver – osobito Norton ili McAfee ? Ako je tako, možda njegova djelomična deinstalacija uzrokuje probleme. Upotrijebite McAfee Consumer Products Removal Tool ili neki antivirusni alat^{(antivirus removal tool)} za uklanjanje kako biste bili sigurni da ste uklonili čak i njegove ostatke.

3] Pokrenite izvanmrežno skeniranje zlonamjernog softvera

Jeste li provjerili ima li na računalu zlonamjerni softver? Ili ste se samo oporavili od napada zlonamjernog softvera? Predlažem da preuzmete i pokrenete samostalni prijenosni antivirusni skener^{(stand-alone portable antivirus scanner)} i pokrenete izvanmrežno skeniranje sa svog USB -a – ili pak koristite internetsku uslugu antivirusnog skenera^{(online antivirus scanner)} za skeniranje vašeg računala.

4] Omogućite Windows Defender putem akcijskog centra^{(Action Center)}

Otvorite Akcijski centar^{(Action Center)} i provjerite možete li omogućiti Windows Defender .

5] Provjerite status usluge Defender

Pokrenite services.msc da otvorite Services Manager . Provjerite je li usluga Windows Defender^{(Windows Defender service)} pokrenuta i postavljena na Automatski.

6] Ponovno registrirajte ove DLL datoteke

Ako  se usluga Windows Defender^{(Windows Defender Service)} ( WinDefend ) ili Windows Defender Network Inspection Service ( WdNisSvc ) Windows Defendera^{(Windows Defender)} stalno zaustavlja, isključuje ili se ne može pokrenuti,

Ponovno registrirajte sljedeće dll datoteke i pogledajte hoće li vam pomoći. Pokrenite svaku naredbu u povišenom naredbenom retku jednu za drugom i pritisnite Enter:

regsvr32 wuaueng.dll

regsvr32 wucltui.dll

regsvr32 softpub.dll

regsvr32 wintrust.dll

regsvr32 initpki.dll

regsvr32 wups.dll

regsvr32 wuweb.dll

regsvr32 atl.dll

regsvr32 mssip32.dll

Možete koristiti naš besplatni softver FixWin da vratite Windows Defender na zadane postavke.

7] Provjerite postavke registra

Pokrenite regedit i idite do sljedeće tipke:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Defender

Ovdje provjerite je li vrijednost ovih DWORDS 1 : DisableAntiSpyware i DisableAntiVirus .

Ako je 0, tada ćete morati koristiti naš besplatni  RegOwnit da preuzmete vlasništvo nad tim ključevima registra^(Registry) , a zatim promijenite njegovu vrijednost od 0 do 1. RegOwnit vam omogućuje preuzimanje vlasništva nad ključem registra sustava Windows^{(Windows Registry)} pomoću administratora^{(Administrator)} , kućnih korisnika^{(Home Users)} ili trenutni prijavljen ^(Logged)korisnički^(User) račun .

8] Izvršite^(Perform) provjeru konzistentnosti na WMI repozitoriju

Također se može dogoditi da Windows Security Center može zatražiti od vas da "Provjerite postavke"^{( “Check Settings” )} za zaštitu od zlonamjernog softvera^{(Malware Protection)} , a kada kliknete gumb " Uključi sada^{(Turn on now)} ", može se prikazati pogreška koja kaže " Nema novih definicija dostupnih za preuzimanje za Windows Defender ^{(There are no new definitions available to download for Windows Defender)}“.

Moguće je da je problem nastao zbog nedosljednog WMI spremišta^{(WMI repository)} . Ponovno pokretanje WMI spremišta bi stoga trebalo pomoći u rješavanju problema.

Otvorite naredbeni redak kao administrator^{(Open Command Prompt as an Administrator)} . Upišite sljedeću naredbu i pritisnite Enter :

winmgmt /verifyrepository

Ako dobijete poruku " WMI spremište nije dosljedno^{(WMI repository is not consistent)} ", pokrenite sljedeću naredbu:

winmgmt /salvagerepository

Ovo će izvršiti provjeru dosljednosti na WMI spremištu i riješiti problem. Ponovno pokrenite svoj stroj.

Pokušajte sada omogućiti Windows Defender.

Ako umjesto toga dobijete sljedeću poruku, winmgmt /salvagerepository is failed, zanemarite ovu poruku i ponovno pokrenite " winmgmt /salvagerepository ". Ovaj put bi trebalo pomoći.

Ovaj post pod naslovom Nije moguće uključiti Windows Defender^{(Unable to turn on Windows Defender)}  nudi neke dodatne prijedloge za rješavanje problema, koji bi vas također mogli zanimati. Također biste mogli provjeriti kôd pogreške Windows Defendera koji ste primili i provjeriti je li bilo koja razlučivost dostupna u ^{(Windows Defender)}Microsoftu^(Microsoft) .

Pročitajte ovaj post ako je vaša antivirusna zaštita istekla .

Možda biste željeli pogledati i ove postove koji pomažu u rješavanju problema Windows Defendera:^{(You may also want to check out these posts which help troubleshoot Windows Defender problems:)}

• Pogreška 0x800106a, Windows Defender se neće uključiti
• Usluga ovog programa je zaustavljena – šifra pogreške 0x800106ba
• Kod pogreške Windows Defendera 0x800106ba: Aplikacija se nije uspjela inicijalizirati^{(Windows Defender Error Code 0x800106ba: Application failed to initialize)}
• Pogreška Windows Defendera: MSASCui.exe – Nije moguće locirati komponentu
• Pogreška 0x80070422 Usluga se nije mogla pokrenuti u Windows Defenderu^{(Error 0x80070422 The Service Couldn’t Be Started in Windows Defender)}
• Pogreška 0x80508020, 0x800705b4 za Windows.
• Windows Defender kod pogreške 0x800106ba Aplikacija se nije uspjela inicijalizirati^{(Windows Defender Error Code 0x800106ba Application failed to initialize)}
• Windows Defender se neće isključiti čak ni kada je instaliran AntiVirus treće strane^{(Windows Defender will not turn off even when 3rd party AntiVirus is installed)}
• Nije moguće uključiti Windows Defender^{(Unable to turn on Windows Defender)}
• Windows Defender neće ažurirati definicije
• Windows nije uspio instalirati sljedeće ažuriranje s pogreškom 0x80070643
• Status računala Windows Defender – potencijalno nezaštićeno
• Pogreška 0x80080015, aktivacija zahtijeva da se prikaže ime za prikaz ispod ključa CLSID .

Windows Defender is turned off or not working

Windows Defender acts as the first line of defense against any malware, spyware infections that might have affected your computer. Microsoft provides this free anti-malware program to customers using Windows 10/8/7/Vista. It allows end-users to schedule a scan or manually run a quick, full, or custom scan.

However, sometimes, a user may experience issues enabling Windows Defender application in Windows. He may find that his Windows Defender is turned off or not working. Also, if your Windows Defender disables itself automatically – every time you start your Windows computer, or at any time randomly when you are working on your PC, here are a few things you may want to investigate.

This article explains you the troubleshooting procedure to resolve the same.

Windows Defender is turned off or not working

You may receive a message: Windows Defender has been turned off, and it isn’t monitoring your computer.

If you have another antivirus software installed, it will turn off Windows Defender. But if you do not and yet, then you might want to carry out the following troubleshooting steps:

1. Install the latest Windows Updates
2. Reinstall any third-party antivirus you may have installed
3. Run an offline malware scan
4. Enable Windows Defender via Action Center
5. Check Defender Service status
6. Re-register these DLL files
7. Check Registry setting
8. Perform consistency check on WMI repository.

1] Install the latest Windows Updates

Check if you have all the latest Windows Updates installed, including having the latest version of Windows Defender and its definitions.

2] Reinstall any third-party antivirus you may have installed

Did you uninstall any security software recently – especially Norton or McAfee? If so maybe its partial uninstallation is causing issues. Use McAfee Consumer Products Removal Tool or some antivirus removal tool to ensure that you have even removed its remnants.

3] Run an offline malware scan

Have you checked your computer for malware? Or did you just recover from a malware attack? I suggest you download and run a stand-alone portable antivirus scanner and run an offline scan from your USB – or else use an online antivirus scanner service to scan your PC.

4] Enable Windows Defender via Action Center

Open Action Center and see if you can enable Windows Defender.

5] Check Defender Service status

Run services.msc to open Services Manager. Ensure that the Windows Defender service is started and set to Automatic.

6] Re-register these DLL files

If Windows Defender Service (WinDefend) or Windows Defender Network Inspection Service (WdNisSvc)  of Windows Defender keeps stopping, turning off or could not start,

Re-register the following dll files and see if it helps you. Run each command in an elevated command prompt one after the other and hit Enter:

regsvr32 wuaueng.dll

regsvr32 wucltui.dll

regsvr32 softpub.dll

regsvr32 wintrust.dll

regsvr32 initpki.dll

regsvr32 wups.dll

regsvr32 wuweb.dll

regsvr32 atl.dll

regsvr32 mssip32.dll

You can use our freeware FixWin to reset Windows Defender to default settings.

7] Check Registry setting

Run regedit and navigate to the following key:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Defender

Here ensure that the value of these DWORDS is 1: DisableAntiSpyware and DisableAntiVirus.

If it is 0, then you will have to use our freeware RegOwnit to take ownership of these Registry keys and then change its value from 0 to 1. RegOwnit allows you to take ownership of a Windows Registry key using Administrator, Home Users, or the current Logged On User account.

8] Perform consistency check on WMI repository

It may also happen that Windows Security Center may prompt you to “Check Settings” for the Malware Protection, and when you click the “Turn on now” button, it may show an error that says “There are no new definitions available to download for Windows Defender“.

It may be possible that the issue may have been caused due to an inconsistent WMI repository. Restarting the WMI repository should thus help resolve the issue.

Open Command Prompt as an Administrator. Type the following command and hit Enter:

winmgmt /verifyrepository

If you get a message “WMI repository is not consistent“, run the following command:

winmgmt /salvagerepository

This will perform a consistency check on the WMI repository and resolve the issue. Restart your machine.

Try enabling Windows Defender now.

If you get the following message instead, winmgmt /salvagerepository is failed, ignore this message, and again run “winmgmt /salvagerepository“. This time, it should help.

This post titled Unable to turn on Windows Defender offers some additional troubleshooting suggestions, which may also interest you. You may also want to check the Windows Defender error code you receive and see if any resolution is available at Microsoft.

Read this post if your Antivirus protection has expired.

You may also want to check out these posts which help troubleshoot Windows Defender problems:

• Error 0x800106a, Windows Defender will not turn on
• This program’s service has stopped – Error Code 0x800106ba
• Windows Defender Error Code 0x800106ba: Application failed to initialize
• Windows Defender Error: MSASCui.exe – Unable To Locate Component
• Error 0x80070422 The Service Couldn’t Be Started in Windows Defender
• Error 0x80508020, 0x800705b4 for Windows.
• Windows Defender Error Code 0x800106ba Application failed to initialize
• Windows Defender will not turn off even when 3rd party AntiVirus is installed
• Unable to turn on Windows Defender
• Windows Defender will not update definitions
• Windows failed to install the following update with error 0x80070643
• Windows Defender PC status – Potentially unprotected
• Error 0x80080015, The Activation Requires A Display Name To Be Present Under The CLSID Key.

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