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- Summary
- Modify the default driver installation behavior using a registry key
- Set RestrictDriverInstallationToAdministrators using Group Policy
- Install print drivers when the new default setting is enforced
- Recommended settings and partial mitigations for environments that cannot use the default behavior
- Frequently asked questions
- Resources
Windows updates released August 10, 2021 and later will, by default, require administrative privilege to install drivers. We made this change in default behavior to address the risk in all Windows devices, including devices that do not use Point and Print or print functionality. For more information, see Point and Print Default Behavior Change and CVE-2021-34481.
By default, non-administrator users will no longer be able to do the following using Point and Print without an elevation of privilege to administrator:
•Install new printers using drivers on a remote computer or server
•Update existing printer drivers using drivers from remote computer or server
Note If you are not using Point and Print, you should not be affected by this change and will be protected by default after installing updates released August 10, 2021 or later.
Important Printing clients in your environment must have an update released January 12, 2021 or later before installing updates release September 14, 2021. Please see Q2 in “Frequently asked questions” below for more information.
You can modify this default behavior using the registry key in the table below. However, be very careful when using a value of zero (0) because doing that makes devices vulnerable. If you must use the registry value of 0 in your environment, we recommend using it temporarily while you adjust your environment to allow Windows devices to use the value of one (1).
Note Windows updates will not set or change the registry key. You can set the registry key before or after installing updates released August 10, 2021 or later.
After installing updates released October 12, 2021 or later, you can also set RestrictDriverInstallationToAdministrators using a Group Policy, using the following instructions:
1.Open the group policy editor tool and go to Computer Configuration > Administrative Templates > Printers.
If you set RestrictDriverInstallationToAdministrators as not defined or to 1, depending on your environment, users must use one of the following methods to install printers:
•Provide an administrator username and password when prompted for credentials when attempting to install a printer driver.
•Include the necessary printer drivers in the OS image.
•Temporarily set RestrictDriverInstallationToAdministrators to 0 to install printer drivers.
The following mitigations can help secure all environments, but especially if you must set RestrictDriverInstallationToAdministrators to 0. These mitigations do not completely address the vulnerabilities in CVE-2021-34481.
Important There is no combination of mitigations that is equivalent to setting RestrictDriverInstallationToAdministrators to 1.
Q1: Every time I attempt to print, I receive a prompt saying, "Do you trust this printer," and it requires administrator credentials to continue. Is this expected?
A1:Being prompted for every print job is not expected. The majority of environments or devices that experience this issue will be resolved by installing updates released October 12, 2021 or later. These updates address an issue related to print servers and print clients not being in the same time zone.
If you are still having this issue after installing updates released October 12, 2021 or later, you might need to contact your printer manufacturer for updated drivers. This issue might also occur when a print driver on the print client and the print server use the same filename, but the server has a newer version of the driver file. When the print client connects to the print server, it finds a newer driver file and is prompted to update the drivers on the print client. However, the file in the package it is offered for installation does not include the newer driver file version.
The files being compared are the drivers within the spool folder, usually in C:\Windows\System32\spool\drivers\x64\3 on both the print client and print server. The driver package being offered for installation will usually be in C:\Windows\System32\spool\drivers\x64\PCC on the print server. After the files in the \3 folder are compared between devices, if they do not match, the package in PCC is installed. If the files in the print server’s \3 folder are not from the same printer driver that PCC offers to the client, the print client will compare the files and find the mismatch every time it prints.
To mitigate this issue, verify that you are using the latest drivers for all your printing devices. Where possible, use the same version of the print driver on the print client and print server. If updating drivers in your environment does not resolve the issue, please contact support for your printer manufacturer (OEM).
Q2: I installed updates released September 14, 2021 and some Windows devices cannot print to network printers. Is there an order I need to install updates on print clients and print servers?
Apr 29, 2024 · Print Management is a Microsoft Management Console (MMC) snap-in that enables you to install, view, and manage the printers. In this tutorial we’ll show you the easiest ways to open Print Management in Windows 11 / 10 / 8 / 7. Method 1: Open Print Management via Run Command.
Aug 31, 2016 · To create a full delegated print administrator. Open Server Manager, click Tools, and then click Print Management. In the left pane, click Print Servers, right-click the applicable print server, and then click Properties. In Print Server Properties, click the Security tab.
A procedure from installation of Epson Print Admin to preparations of practical use is explained. Epson Print Admin: User’s Guide This is the manuals for the users who uses Epson Print Admin.
