How To Fix “The System Administrator Has Set Policies To Prevent This Installation”

How To Fix “The System Administrator Has Set Policies To Prevent This Installation”.

The System Administrator Has Set Policies To Prevent This Installation is precisely what it feels like. This error pops up once you attempt to make application-related adjustments, however the administrator has imposed a restriction policy about doing so.

Modifying the Windows Installer Configuration through the native group policy editor is one of the best ways to resolve this drawback, however there are a variety of different issues you possibly can strive, in case that alone isn’t sufficient.

You’ll discover all the main points relating to the causes, and obligatory options, within the article beneath.

What Causes This Error

As the identify implies, this error happens when a non-admin consumer makes an attempt to put in, uninstall, restore, or modify an utility. On uncommon events, even an admin account could face this error. Aside from this, this error can even happen as a result of:

  • User Account Control (UAC)
  • Restrictive Antivirus
  • Residual knowledge from uninstalled apps within the Registry

How to Fix This Error

Modifying the Windows Installer Policy Setting is the perfect repair for this problem, however there are a few easier options you possibly can strive first. We suggest checking the fixes within the order listed beneath.

Install From Default Admin Account

An administrator account is created by default once you set up an OS. As this account has full management of the system, it’s often saved disabled for safety causes. But using it may be useful for points corresponding to the present error. Here’s how one can allow it through the command line:

  1. Press Win + R, sort cmd, and press CTRL + Shift + Enter.
  2. Type the next command and press Enter:
    web consumer administrator /energetic:sure
    net-user-administrator-active-yes
  3. Sign out of your present account and log in to the Admin account.

Alternatively, you may as well allow it with the steps listed beneath. But make word that this technique doesn’t work for the house version of Windows.

  1. Press Win + R, sort lusrmgr.msc, and press Enter. Note that this
  2. Double click on on Users > Administrator.
  3. Uncheck the Account is Disabled possibility and press OK.
    account-is-disabled-administrator-properties
  4. Sign out of your present account and log in to the Admin account.

Once you’ve logged in, use the Run as Admin possibility once you launch the installer.

Set UAC to Never Notify

User Account Control (UAC)’s perform is to make sure that purposes don’t make any adjustments to the system with out the consumer’s approval. Normally, it does this job properly, but when it’s malfunctioning, it might probably prohibit you from performing duties corresponding to putting in applications.

In such instances, you possibly can quickly disable UAC with the next steps:

  1. Press Win + R, sort useraccountcontrolsettings, and press Enter.
  2. Set the slider to Never Notify and Press OK.user-account-control-uac-never-notify

If you continue to can’t carry out the set up, take a look at the options beneath first. But as soon as the difficulty is resolved, we suggest setting UAC to the default setting, i.e., Notify me solely when apps attempt to make adjustments to my PC for safety causes.

Modify Windows Installer Policy Setting

The error itself states that The System Administrator Has Set Policies To Prevent This Installation. Thus, modifying the policy settings to not forestall the set up will resolve the difficulty normally. Here are the steps to take action:

Note: By default, the native group policy editor is not accessible on Windows Home Edition. You’ll have to allow it first to use the repair listed beneath. The steps to take action are listed within the How to Enable GPEDIT part on the finish.
  1. Log in to an administrator account.
  2. Press Win + R, sort gpedit.msc, and press Enter.
  3. Select Computer Configuration > Administrative Templates > Windows Components > Windows Installer.
  4. Double click on the Turn off Windows Installer policy setting.
    turn-off-windows-installer
  5. Select Enabled. In the choices part, choose Never from the drop-down menu.
    disable-windows-installer-never
  6. Press OK to use the adjustments.
  7. Back within the group policy editor, choose Windows Settings > Security Settings.
  8. Right-click Software Restriction Policies and choose New Software Restriction Policies.
  9. Double click on Enforcement. Under Apply software program restriction insurance policies to the next customers, choose All customers besides native directors, and press OK.
    apply-software-restriction-policies-to-all-users-except-local-admin
  10. Close the native group policy editor.
  11. Open Elevated Command Prompt and execute the next command:
    gpupdate /drive
  12. Once the policy will get up to date, re-run the installer.

Delete Product Key through Registry Editor

A Windows Installer 2.0 Bug can even trigger this error message when you’re making an attempt to reinstall or uninstall a beforehand put in utility. This might be fastened by deleting the product’s key from the registry. Here are the precise steps to do that:

Note: We extremely suggest backing up your registry earlier than making any adjustments to it. Creating a system restore level can also be a good suggestion, particularly when you haven’t made one lately.
  1. Press Win + R, sort regedit, and press Enter.
  2. Navigate to ComputerHKEY_CLASSES_ROOTInstallerProducts within the registry editor.
  3. Click on a key to pick out it and word its product identify. Repeat this till you discover the product you’re making an attempt to switch.
    delete-product-key-registry
  4. Once you discover the one you’re searching for, right-click the important thing and choose Delete.
  5. Close the registry editor and check when you can set up/uninstall now.

Disable Third-Party Antivirus

A extremely restrictive antivirus can intervene together with your system’s regular functioning in numerous methods. In truth, this is among the most typical complaints with regards to antiviruses. To examine if the antivirus is inflicting this problem, it’s best to quickly disable it with the steps listed beneath:

  1. Right-click the antivirus’ icon from the taskbar and choose Turn off Protection or Disable.
    turn-off-antivirus-real-time-protection
  2. Alternatively, launch the antivirus app and choose an identical possibility. This possibility will probably be discovered both on the house display screen or below Settings > Advanced Settings.
  3. Once it’s disabled, examine when you can set up with none points now.
  4. If the antivirus seems to be the issue, you possibly can both set more lenient guidelines, swap to a distinct antivirus, or simply use Windows Defender.


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