π‘οΈπͺπ»ππβοΈGroup - Print Spooler Hardening Exemption
What this group does πβ
Being in this group means one thing:
"This device cannot live under the hardened print spooler, and we know exactly why."
The baseline policy βοΈπͺπ»CP - Security - Print Spooler Hardening clamps the spooler shut. No user-mode driver installs. No Point and Print without elevation. No incoming client connections. No legacy RPC channel. Excellent for laptops. Wrong answer for the warehouse PC that shares a Zebra label printer over SMB. π
This group is the carve-out. Membership does two things at once:
- Excludes the device from βοΈπͺπ»CP - Security - Print Spooler Hardening
- Includes the device in βοΈπͺπ»πCP - Security - Print Spooler Hardening - Exemption
Both assignments are mirrored off this single group. Don't manage them separately. One source of truth, two effects. πͺ
Why both? Because the hardening settings tattoo. Exclusion stops further enforcement; the inverse policy is what actually rolls the registry values back. A device that lands in this group needs both effects to actually be un-hardened.
π οΈ Group Configurationβ
| Setting | Value |
|---|---|
| Group name | π‘οΈπͺπ»ππβοΈGroup - Print Spooler Hardening Exemption |
| Group description | Devices in this group are excluded from the Print Spooler Hardening baseline and receive the paired rollback policy that resets spooler-related registry values to Windows defaults. Membership requires written justification, typically a device that shares a printer over the network, a dev workstation that tests driver installs, or a host for a LOB application that ships its own non-package-aware printer driver. |
| Group type | Security |
| Membership type | Assigned (Device Group) |
π‘ SuperVision Tipβ
This group is manually assigned. And it should stay that way. π
The membership flow is the only place the exception is defined; the two policies just react to it. In SuperVision, configure both policy assignments off this group so adding or removing a device is a single action with the right effect on both sides.
βοΈ Always document why a device is in this group. The next person to look at the warehouse PC at 11pm on a Friday will thank you.
π― Purposeβ
Used as an exception mechanism for devices like:
- Shop-floor or warehouse PCs sharing a printer. Usually a Zebra/Brother label printer surfaced over SMB to a handful of stations π
- Dev / IT workstations actively testing print-driver installs. Repackaging vendor drivers, validating Win32 deployment, debugging driver signing π§ͺ
- Hosts for stubborn LOB apps that ship their own non-package-aware driver. Older accounting / POS / ERP tooling that refuses to be Win32-packaged π§Ύ
- The one PC connected to an old MFP with vendor drivers that haven't been updated since Windows 7 and need user-mode install paths π¨οΈ
This group is for devices that need the exception. Not just devices where users want it.
β οΈ Governance mattersβ
If you add a device to this group:
- You should know exactly why it needs the spooler un-hardened
- The customer should approve it in writing (ticket, email, signed quote, your choice)
- You should document the business justification and the scope ("Zebra label printer share on WAREHOUSE-PC01" not "printing problems")
- You should review membership at least quarterly
If you can't justify why a device is in this group during an audit... it probably shouldn't be there.
Warning signs that you're doing it wrong:
- "Karen's laptop because driver installs were annoying" β
- "The whole accounting department because the LOB app vendor said so" β
- "We can never get it to work otherwise" (translation: nobody checked if there's a Win32 package) β
Valid reasons:
- "WAREHOUSE-PC01 shares the Zebra label printer to four pickers" β
- "DEV-IT-03 is the canary for repackaging vendor drivers" β
- "POS-RECEPTION needs the vendor's non-package driver until we migrate off the legacy app in Q3" β
π¦ΈββοΈ The Spider-Man Ruleβ
Disabling print-spooler hardening on a device gives that device back every attack primitive the baseline closed. Use it like a scalpel, not a sledgehammer. πͺ
If you start adding devices to this group whenever printing is hard, you're not managing exceptions. You're managing a slow leak in your security posture.
π Related Policiesβ
- βοΈπͺπ»CP - Security - Print Spooler Hardening
- βοΈπͺπ»πCP - Security - Print Spooler Hardening - Exemption
π·οΈ With great exceptions comes great documentation requirements.
Pro tip: If more than a handful of devices per tenant end up in this group, step back and ask: "Is there a Win32 package or universal driver I'm not using?" The answer is almost always yes, and packaging once is cheaper than maintaining a permanent exception. π¦