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administrative templatesUser ConfigurationNot configured

Hide specific drives in My Computer

Hides specified drives from Windows Explorer. MSPs use this to prevent access to sensitive partitions on kiosk or shared systems.

10 May 20264 min —
Policy path
User Configuration > Administrative Templates > Windows Components > Windows Explorer
Supported on
Windows 10, Windows 11, Windows Server 2016 and later

Hides specified drives from Windows Explorer. MSPs use this to prevent access to sensitive partitions on kiosk or shared systems. Security baselines recommend setting it to (drive mask).

Description

Hide specific drives in My Computer is a Windows Group Policy setting located under User Configuration > Administrative Templates > Windows Components > Windows Explorer. It applies to the User Configuration branch and is classified as a Informational-level policy in the Kiosk & Shell Access category.

Hides specified drives from Windows Explorer. MSPs use this to prevent access to sensitive partitions on kiosk or shared systems.

Microsoft sets the default value to 0 while industry security baselines (CIS, NIST, DISA STIG) recommend (drive mask).

Under the hood, this policy is enforced through the Windows registry at HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer using the value name NoDrives. Modifying the value directly through regedit.exe or PowerShell produces the same effect as configuring the GPO, but going through Group Policy is preferred so that the setting is centrally managed and survives reboots, image rebuilds, and policy refresh cycles.

In-depth explanation

This is primarily an operational or user-experience setting. It does not directly raise or lower the security posture, but it standardizes behavior across the fleet, which is important for predictable support, training, and troubleshooting in an MSP-managed environment.

The policy is grouped under Kiosk & Shell Access, which means it is typically applied through a domain-wide GPO linked at the OU level. In a multi-tenant MSP context, scope it through WMI filters or security group filtering rather than linking at the domain root, so that you can roll out progressively (pilot OU → wider rings → all production).

The setting takes effect after the next Group Policy refresh (gpupdate /force for immediate testing, or by default within ~90 minutes for workstations and ~5 minutes on domain controllers). For computer-side policies a reboot may be required; for user-side policies, a sign-off/sign-on cycle is enough.

Use cases

  • Apply organization-wide hardening of kiosk & shell access on all domain-joined Windows endpoints.
  • Roll out a CIS Benchmark-aligned baseline targeting 'Hide specific drives in My Computer' via a dedicated GPO.
  • Reduce attack surface for accounts that handle privileged credentials or sensitive data.
  • Standardize the configuration across multiple customer tenants for an MSP-managed fleet.

Security implications

This control is primarily about consistency and supportability rather than security. The main risk of leaving it unconfigured is divergence between machines, which makes troubleshooting and standardized imaging harder, especially across multiple customer tenants in an MSP context.

How to configure

  1. Open Group Policy Management Console (gpmc.msc) on a domain controller or a workstation with RSAT installed.
  2. Create or edit a GPO linked to the OU containing the target user configurations. We recommend a dedicated baseline GPO (e.g. SEC – Kiosk & Shell Access) instead of editing Default Domain Policy.
  3. Navigate to User Configuration > Administrative Templates > Windows Components > Windows Explorer.
  4. Open Hide specific drives in My Computer and set it to (drive mask).
  5. Click OK and close the editor.
  6. On the target endpoint, run gpupdate /force (or wait for the next refresh cycle), then verify with rsop.msc or gpresult /h report.html.

Direct registry path: HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoDrives. You can apply the same change with PowerShell:

New-Item -Path 'HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer' -Force | Out-Null
Set-ItemProperty -Path 'HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer' -Name 'NoDrives' -Value <value> -Type DWord

Registry mapping

Registry pathHKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
Value nameNoDrives
Value typeREG_DWORD
Enabled value(drive mask)
Disabled value0

Frequently asked questions

What does the Hide specific drives in My Computer Group Policy do?
Hides specified drives from Windows Explorer. MSPs use this to prevent access to sensitive partitions on kiosk or shared systems.
Where do I find this setting in the GPO editor?
Open <code>gpmc.msc</code>, then navigate to <code>User Configuration > Administrative Templates > Windows Components > Windows Explorer</code> and look for <strong>Hide specific drives in My Computer</strong>.
What is the Microsoft default value?
<code>0</code> on a fresh Windows install. Domain-joined machines may inherit a different value if a baseline GPO is already in place.
What value do security baselines recommend?
<code>(drive mask)</code> – aligned with CIS, NIST, and DISA STIG guidance for current Windows versions.
Can I configure this without a GPO?
Yes, by writing to <code>HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoDrives</code> directly via <code>regedit</code>, PowerShell, or Intune. A GPO is preferred for centrally managed environments because it survives reimaging and is easier to audit.