Ako pokušavate ažurirati Windows Defender pomoću Windows Update -a, možda ćete se morati suočiti s kodom pogreške 0x80070643 koji prati poruku o pogrešci “ Ažuriranje definicije^{(Definition Update)} za Windows Defender – pogreška 0x80070643^{(Windows Defender – Error 0x80070643)} ”. Šifra pogreške obično znači da se tijekom instalacije dogodila fatalna pogreška, ali ne postoji poseban uzrok povezan s tom pogreškom. Također, pogreška zapravo ne pruža puno informacija, ali Microsoft je priznao problem, a ovo je njihova službena izjava:

Hvala vam na strpljenju u vezi s pogreškom ažuriranja Windows Defendera 0x80070643. Ovdje pročitajte naš vodič o tome kako popraviti kôd pogreške ažuriranja ili aktivacije sustava Windows 10 0xc004f075^{(How to fix Windows 10 Update or Activation Error Code 0xc004f075 here)} . Ovdje pročitajte naš vodič o tome kako popraviti kôd pogreške ažuriranja ili aktivacije sustava Windows 10 0xc004f075^{(How to fix Windows 10 Update or Activation Error Code 0xc004f075 here)} .. Svjesni smo problema i pokušavamo uvesti ublažavanje čim prije koliko je moguće. U međuvremenu, da biste svoj stroj vratili u zaštićeno stanje, možete ručno preuzeti i primijeniti najnovije ažuriranje definicije.^{(Thank you for your patience regarding Windows Defender update error 0x80070643. Read our guide on How to fix Windows 10 Update or Activation Error Code 0xc004f075 here.. Read our guide on How to fix Windows 10 Update or Activation Error Code 0xc004f075 here.. We are aware of the issue and trying to roll out mitigation as soon as possible. Meanwhile, to get your machine back to a protected state, you can manually download and apply the latest Definition Update.)}

Sada postoji nekoliko popravaka ili zaobilazno rješenje problema, ali morate ih sve isprobati jer ono što može raditi za jednog korisnika ne znači nužno da će raditi i za drugog korisnika. Dakle, bez gubljenja vremena, pogledajmo kako popraviti Windows Defender Update koji ne uspije s pogreškom 0x80070643 uz pomoć dolje navedenog vodiča za rješavanje problema. Također pročitajte Kako izvršiti ažuriranje definicije Windows Defendera ovdje^{(How to Perform Windows Defender Definition Update here)} .. Također pročitajte kako izvršiti ažuriranje definicije Windows Defendera ovdje^{(How to Perform Windows Defender Definition Update here)} ..

Popravite neuspjeh ažuriranja Windows Defendera^{(Fix Windows Defender Update)} s pogreškom 0x80070643

Obavezno  stvorite točku vraćanja^{(create a restore point)}  u slučaju da nešto pođe po zlu.

Metoda 1: Ručno ažurirajte Windows Defender^{(Method 1: Update Windows Defender Manually)}

1. Pritisnite tipku Windows Key + Q da biste otvorili Windows Search , upišite Windows Defender i kliknite na rezultat pretraživanja.

2. Idite na Update > Update definitions.

3. Kliknite^(Click) na Ažuriraj^(Update) i pričekajte da Windows Defender preuzme i instalira ažuriranja.

4. Ponovno pokrenite računalo da biste spremili promjene.

Metoda 2:  ^{(Method 2: )}Privremeno onemogućite antivirusni program treće strane^{(Temporarily Disable 3rd party Antivirus)}

1. Desnom tipkom miša kliknite ikonu Antivirusnog programa^{( Antivirus Program icon)} na traci sustava i odaberite Onemogući.^(Disable.)

2. Zatim odaberite vremenski okvir za koji će Antivirusni program ostati onemogućen.^{( Antivirus will remain disabled.)}

Napomena:^(Note:) Odaberite najmanju moguću količinu vremena, na primjer, 15 minuta ili 30 minuta.

3. Nakon što završite, ponovno pokušajte pokrenuti Windows Defender i provjerite jeste li u mogućnosti popraviti Windows Defender Update koji ne uspije s pogreškom 0x80070643.^{(Fix Windows Defender Update fails with error 0x80070643.)}

Metoda 3: Pokrenite SFC i CHKDSK^{(Method 3: Run SFC and CHKDSK)}

1. Otvorite naredbeni redak^{(Command Prompt)} . Korisnik može izvršiti ovaj korak tražeći 'cmd' , a zatim pritisnite Enter.

2. Sada upišite sljedeće u cmd i pritisnite enter:

Sfc /scannow
sfc /scannow /offbootdir=c:\ /offwindir=c:\windows

3. Pričekajte^(Wait) da se gore navedeni proces završi i nakon završetka ponovno pokrenite računalo.

4. Zatim pokrenite  CHKDSK da popravite pogreške datotečnog sustava^{(CHKDSK to Fix File System Errors)} .

5. Pustite da se gornji proces dovrši i ponovno pokrenite računalo da biste spremili promjene.

Metoda 4: Izvedite čisto pokretanje^{(Method 4: Perform Clean Boot)}

Ponekad softver treće strane može biti u sukobu sa sustavom Windows^(Windows) i može uzrokovati problem. Da biste popravili ažuriranje Windows Defendera s pogreškom 0x80070643 Problem^{(Fix Windows Defender Update fails with error 0x80070643 Issue)} , morate izvesti čisto pokretanje^{(perform a clean boot)}  na računalu i dijagnosticirati problem korak po korak.

Metoda 5: Koristite naredbeni redak za ažuriranje Windows Defendera^{(Method 5: Use the command prompt to update Windows Defender)}

1. Otvorite naredbeni redak^{(Command Prompt)} . Korisnik može izvršiti ovaj korak tražeći 'cmd' , a zatim pritisnite Enter.

2. Upišite sljedeću naredbu u cmd i pritisnite Enter nakon svake:

“%PROGRAMFILES%\Windows Defender\MPCMDRUN.exe” -RemoveDefinitions -All

“%PROGRAMFILES%\Windows Defender\MPCMDRUN.exe” -SignatureUpdate

3. Nakon što naredba završi obradu, zatvorite cmd i ponovno pokrenite računalo.

Metoda 6: Poništite komponente ažuriranja sustava Windows^{(Method 6: Reset Windows Updates Components)}

1. Otvorite naredbeni redak^{(Command Prompt)} . Korisnik može izvršiti ovaj korak tražeći 'cmd' , a zatim pritisnite Enter.

2. Sada upišite sljedeće naredbe da zaustavite Windows Update Services , a zatim pritisnite Enter nakon svake:

net stop wuauserv
net stop cryptSvc
net stop bits
net stop msiserver

3. Zatim upišite sljedeću naredbu da biste preimenovali SoftwareDistribution Folder i zatim pritisnite Enter :

ren C:\Windows\SoftwareDistribution SoftwareDistribution.old
ren C:\Windows\System32\catroot2 catroot2.old

4. Na kraju upišite sljedeću naredbu za pokretanje Windows Update Services i pritisnite Enter nakon svake:

net start wuauserv
net start cryptSvc
net start bits
net start msiserver

5. Ponovno pokrenite računalo da biste spremili promjene i provjerite možete li  popraviti neuspjeh ažuriranja Windows Defendera s pogreškom 0x80070643.^{( Fix Windows Defender Update fails with error 0x80070643.)}

Metoda 7: Pokrenite alat za rješavanje problema Windows Update^{(Method 7: Run Windows Update Troubleshooter)}

1. Otvorite upravljačku ploču, a zatim potražite Troubleshooting u traci za pretraživanje^{(Search Bar)} u gornjem desnom kutu i kliknite na Troubleshooting.

2. Zatim u lijevom prozoru u oknu odaberite Prikaži sve.^{(View all.)}

3. Zatim s popisa Otklanjanje poteškoća^{(Troubleshoot)} s računalom odaberite Windows Update.

4. Slijedite upute na zaslonu i pustite da se pokrene Windows Update Troubleshoot .

5. Ponovno pokrenite svoje računalo i možda ćete moći popraviti neuspjeh ažuriranja Windows Defendera s pogreškom 0x80070643.^{(Fix Windows Defender Update fails with error 0x80070643.)}

Preporučeno:^{(Recommended:)}

• Popravite zamrzavanje reprodukcije videozapisa u sustavu Windows 10^{(Fix Video Playback Freezes on Windows 10)}
• Popravak Nema zvuka iz slušalica u sustavu Windows 10^{(Fix No sound from headphone in Windows 10)}
• Kako popraviti Sec_error_expired_certificate^{(How to Fix Sec_error_expired_certificate)}
• Ispravite favorite koji nedostaju u Internet Exploreru u sustavu Windows 10^{(Fix Favorites missing in Internet Explorer on Windows 10)}

To je to što ste uspješno popravili ažuriranje Windows Defendera s pogreškom 0x80070643^{(Fix Windows Defender Update fails with error 0x80070643)} , ali ako i dalje imate pitanja u vezi s ovim postom, slobodno ih postavite u odjeljku za komentare.

Fix Windows Defender Update fails with error 0x80070643

Іf yоu are trying to update Windows Defendеr using Windows Update, then you may have tо face error code 0x80070643 which accompanies the error message “Dеfinition Update for Windows Defender – Error 0x80070643”. The error code tyрically means that a fatal еrror hаs occurred during the іnstаllation, but there is no particular cause associated with this еrror. Also, the error doesn’t really provide much information, but Microsоft has acknowledged the issuе, and this is their оfficial statement:

Thank you for your patience regarding Windows Defender update error 0x80070643. Read our guide on How to fix Windows 10 Update or Activation Error Code 0xc004f075 here.. Read our guide on How to fix Windows 10 Update or Activation Error Code 0xc004f075 here.. We are aware of the issue and trying to roll out mitigation as soon as possible. Meanwhile, to get your machine back to a protected state, you can manually download and apply the latest Definition Update.

Now there are few fixes or workaround the problem, but you need to try them all because what may work for one user doesn’t necessarily mean that it will work for another user. So without wasting any time let’s see how to Fix  Windows Defender Update fails with error 0x80070643 with the help of below-listed troubleshooting guide. Also read How to Perform Windows Defender Definition Update here.. Also read How to Perform Windows Defender Definition Update here..

Fix Windows Defender Update fails with error 0x80070643

Make sure to create a restore point just in case something goes wrong.

Method 1: Update Windows Defender Manually

1. Press Windows Key + Q to bring up Windows Search, type Windows Defender and click on the search result.

2. Navigate to Update > Update definitions.

3. Click on Update and wait for Windows Defender to download and install updates.

4. Reboot your PC to save changes.

Method 2: Temporarily Disable 3rd party Antivirus

1. Right-click on the Antivirus Program icon from the system tray and select Disable.

2. Next, select the time frame for which the Antivirus will remain disabled.

Note: Choose the smallest amount of time possible, for example, 15 minutes or 30 minutes.

3. Once is done, again try to run Windows Defender and see if you’re able to Fix Windows Defender Update fails with error 0x80070643.

Method 3: Run SFC and CHKDSK

1. Open Command Prompt. The user can perform this step by searching for ‘cmd’ and then press Enter.

2. Now type the following in the cmd and hit enter:

Sfc /scannow
sfc /scannow /offbootdir=c:\ /offwindir=c:\windows

3. Wait for the above process to finish and once done, restart your PC.

4. Next, run CHKDSK to Fix File System Errors.

5. Let the above process complete and again reboot your PC to save changes.

Method 4: Perform Clean Boot

Sometimes 3rd party software can conflict with Windows and can cause the issue. To Fix Windows Defender Update fails with error 0x80070643 Issue, you need to perform a clean boot on your PC and diagnose the issue step by step.

Method 5: Use the command prompt to update Windows Defender

1. Open Command Prompt. The user can perform this step by searching for ‘cmd’ and then press Enter.

2. Type the following command into cmd and hit Enter after each one:

“%PROGRAMFILES%\Windows Defender\MPCMDRUN.exe” -RemoveDefinitions -All

“%PROGRAMFILES%\Windows Defender\MPCMDRUN.exe” -SignatureUpdate

3. Once the command finishes processing, close cmd and reboot your PC.

Method 6: Reset Windows Updates Components

1. Open Command Prompt. The user can perform this step by searching for ‘cmd’ and then press Enter.

2. Now type the following commands to stop Windows Update Services and then hit Enter after each one:

net stop wuauserv
net stop cryptSvc
net stop bits
net stop msiserver

3. Next, type the following command to rename SoftwareDistribution Folder and then hit Enter:

ren C:\Windows\SoftwareDistribution SoftwareDistribution.old
ren C:\Windows\System32\catroot2 catroot2.old

4. Finally, type the following command to start Windows Update Services and hit Enter after each one:

net start wuauserv
net start cryptSvc
net start bits
net start msiserver

5. Reboot your PC to save changes and check if you can Fix Windows Defender Update fails with error 0x80070643.

Method 7: Run Windows Update Troubleshooter

1. Open control panel and then search Troubleshooting in the Search Bar on the top right side and click on Troubleshooting.

2. Next, from the left window, pane select View all.

3. Then from the Troubleshoot computer problems list select Windows Update.

4. Follow on-screen instruction and let the Windows Update Troubleshoot run.

5. Restart your PC, and you may be able to Fix Windows Defender Update fails with error 0x80070643.

Recommended:

• Fix Video Playback Freezes on Windows 10
• Fix No sound from headphone in Windows 10
• How to Fix Sec_error_expired_certificate
• Fix Favorites missing in Internet Explorer on Windows 10

That’s it you have successfully Fix Windows Defender Update fails with error 0x80070643 but if you still have any questions regarding this post then feel free to ask them in the comment’s section.

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