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Elokuu 17, 2018

Ota Credential Guard käyttöön tai poista se käytöstä Windows 10:ssä

Enable or Disable Credential Guard in Windows 10: Windows Credential Guard uses virtualization-based security to isolate secrets so that only privileged system software can access them. Unauthorized access to these secrets can lead to credential theft attacks, such as Pass-the-Hash or Pass-The-Ticket. Windows Credential Guard prevents these attacks by protecting NTLM password hashes, Kerberos Ticket Granting Tickets, and credentials stored by applications as domain credentials.

Ota Credential Guard käyttöön tai poista se käytöstä Windows 10:ssä

By enabling Windows Credential Guard the following features and solutions are provided:

Laitteiden turvallisuus
Virtualisointipohjainen suojaus
Better protection against advanced persistent threats

Now you know the importance of the Credential Guard, you should definitely enable this for your system. So without wasting any time let’s see How to Enable or Disable Credential Guard in Windows 10 with the help of the below-listed tutorial.

Ota Credential Guard käyttöön tai poista se käytöstä Windows 10:ssä

Muista luoda palautuspiste siltä varalta, että jokin menee pieleen.

Method 1: Enable or Disable Credential Guard in Windows 10 using Group Policy Editor

Huomautus: This method only works if you have Windows Pro, Education, or Enterprise Edtion. For Windows Home version users skip this method and follow the next one.

1.Paina Windows Key + R ja kirjoita regedit ja paina Enter avataksesi Ryhmäkäytäntöeditori.

Suorita komento regedit

2.Siirry seuraavaan polkuun:

Tietokoneen asetukset > Hallintamallit > Järjestelmä > Laiteturva

3. Varmista, että valitset Laitevahti than in right window pane double-click on “Turn On Virtualization Based Security” politiikkaa.

Double-click on Turn On Virtualization Based Security Policy

4.In the Properties window of the above policy make sure to select Käytössä.

Set Turn On Virtualization Based Security to Enabled

5.Now from the “Select Platform Security Level” drop-down select Secure Boot or Secure Boot and DMA Suojaus.

From Select Platform Security Level drop-down select Secure Boot or Secure Boot and DMA Protection

6.Next, from “Credential Guard Configuration” drop-down select Enabled with UEFI lock. If you want to turn off Credential Guard remotely, choose Enabled without lock instead of Enabled with UEFI lock.

7.Once finished, click Apply followed by OK.

8. Tallenna muutokset käynnistämällä tietokoneesi uudelleen.

Method 2: Enable or Disable Credential Guard in Windows 10 using Registry Editor

Credential Guard uses virtualization-based security features which have to be enabled first from Windows feature before you can enable or disable Credential Guard in Registry Editor. Make sure to only use one of the below-listed methods to enable virtualization-based security features.

Add the virtualization-based security features by using Programs and Features

1.Paina Windows Key + R ja kirjoita appwiz.cpl ja paina Enter avataksesi Program and Features.

kirjoita appwiz.cpl ja paina Enter avataksesi Ohjelmat ja ominaisuudet

2.From the left-hand window click on “Laita Windows toiminnot päälle tai pois".

laita Windows toiminnot päälle tai pois

3.Find and expand Hyper-V then similarly expand Hyper-V Platform.

4.Under Hyper-V Platform valintamerkki "Hyper-V Hypervisor".

Under Hyper-V Platform checkmark Hyper-V Hypervisor

5.Now scroll down and checkmark “Isolated User Mode” ja napsauta OK.

Add the virtualization-based security features to an offline image by using DISM

1.Paina Windows Key + X ja valitse sitten Komentokehote (Admin).

komentokehote järjestelmänvalvojan oikeuksilla

2.Type the following command into cmd to add the Hyper-V Hypervisor and hit Enter:

dism /image:<WIM file name> /Enable-Feature /FeatureName:Microsoft-Hyper-V-Hypervisor /all
OR
dism /Online /Enable-Feature:Microsoft-Hyper-V /All

Add the virtualization-based security features to an offline image by using DISM

3.Add the Isolated User Mode feature by running the following command:

dism /image:<WIM file name> /Enable-Feature /FeatureName:IsolatedUserMode
OR
dism /Online /Enable-Feature /FeatureName:IsolatedUserMode

Add the Isolated User Mode feature

4.Once finished, you can close the command prompt.

Ota Credential Guard käyttöön tai poista se käytöstä Windows 10:ssä

1.Paina Windows Key + R ja kirjoita regedit ja paina Enter avataksesi Registry Editor.

Suorita komento regedit

2.Siirry seuraavaan rekisteriavaimeen:

HKEY_LOCAL_MACHINESystemCurrentControlSetControlDeviceGuard

3. Napsauta hiiren kakkospainikkeella DeviceGuard Valitse sitten Uusi > DWORD (32-bittinen) arvo.

Right-click on DeviceGuard then select New DWORD (32-bit) Value

4. Nimeä tämä äskettäin luotu DWORD nimellä Ota VirtualizationBasedSecurity käyttöön ja paina Enter.

Name this newly created DWORD as EnableVirtualizationBasedSecurity and hit Enter

5.Double-click on EnableVirtualizationBasedSecurity DWORD then change its value to:

To Enable Virtualization-based Security: 1
To Disable Virtualization-based Security: 0

To Enable Virtualization-based Security change the value of the DWORD to 1

6.Now again right-click on DeviceGuard then select Uusi> DWORD (32-bittinen) -arvo and name this DWORD as RequirePlatformSecurityFeatures sitten paina Enter.

Name this DWORD as RequirePlatformSecurityFeatures then hit Enter

7.Double-click on RequirePlatformSecurityFeatures DWORD and change it’s value to 1 to use Secure Boot only or set it to 3 to use Secure Boot and DMA protection.

Change it's value to 1 to use Secure Boot only or set it to 3 to use Secure Boot and DMA protection.

8.Now navigate to the following registry key:

HKEY_LOCAL_MACHINESystemCurrentControlSetControlLSA

9.Right-click on LSA then select Uusi> DWORD (32-bittinen) -arvo then name this DWORD as LsaCfgFlags ja paina Enter.

Right-click on LSA then select New then DWORD (32-bit) Value

10.Double-click on LsaCfgFlags DWORD and change its value according to:

Disable Credential Guard: 0
Enable Credential Guard with UEFI lock: 1
Enable Credential Guard without lock: 2

Double-click on LsaCfgFlags DWORD and change its value according to

11.Once finished, close Registry Editor.

Disable Credential Guard in Windows 10

If Credential Guard was enabled without UEFI Lock then you can Disable Windows Credential Guard käyttäen Device Guard and Credential Guard hardware readiness tool or the following method:

1.Paina Windows Key + R ja kirjoita regedit ja paina Enter avataksesi Registry Editor.

Suorita komento regedit

2.Navigate and delete the following registry keys:

HKEY_LOCAL_MACHINESystemCurrentControlSetControlLSALsaCfgFlags
HKEY_LOCAL_MACHINESoftwarePoliciesMicrosoftWindowsDeviceGuardEnableVirtualizationBasedSecurity
HKEY_LOCAL_MACHINESoftwarePoliciesMicrosoftWindowsDeviceGuardRequirePlatformSecurityFeatures

Disable Windows Credential Guard

3.Delete the Windows Credential Guard EFI variables by using bcdedit. Press Windows Key + X then select Komentokehote (Admin).

komentokehote järjestelmänvalvojan oikeuksilla

4. Kirjoita seuraava komento cmd:hen ja paina Enter:

mountvol X: /s
copy %WINDIR%System32SecConfig.efi X:EFIMicrosoftBootSecConfig.efi /Y
bcdedit /create {0cb3b571-2f2e-4343-a879-d86a476d7215} /d "DebugTool" /application osloader
bcdedit /set {0cb3b571-2f2e-4343-a879-d86a476d7215} path "EFIMicrosoftBootSecConfig.efi"
bcdedit /set {bootmgr} bootsequence {0cb3b571-2f2e-4343-a879-d86a476d7215}
bcdedit /set {0cb3b571-2f2e-4343-a879-d86a476d7215} loadoptions DISABLE-LSA-ISO
bcdedit /set {0cb3b571-2f2e-4343-a879-d86a476d7215} device partition=X:
mountvol X: /d

5.Once finished, close command prompt and reboot your PC.

6.Accept the prompt to disable Windows Credential Guard.

Suositus:

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