Dism Error 87 Fixed May 2026

DISM Error 87 Fixed: A Step-by-Step Guide to Resolving the Issue

The Deployment Image Servicing and Management (DISM) tool is a crucial component of Windows operating systems, allowing users to service and manage Windows images. However, some users have been encountering the frustrating DISM error 87, which prevents them from using the tool effectively. In this blog post, we will explore the causes of DISM error 87 and provide a step-by-step guide on how to fix it.

What is DISM Error 87?

DISM error 87 is a common issue that occurs when users attempt to use the DISM tool to service or manage Windows images. The error message typically reads: "The DISM service failed. The base directory cannot be specified on the command line for online operations." This error can occur due to various reasons, including: dism error 87 fixed

Corrupted system files
Incorrect syntax or command line usage
Insufficient privileges or permissions
Conflicting software or services

Causes of DISM Error 87

To resolve DISM error 87, it's essential to understand its underlying causes. Some of the common causes include:

Corrupted system files: Corrupted system files can prevent the DISM tool from functioning correctly, leading to error 87.
Incorrect syntax or command line usage: Incorrect usage of the DISM command line can result in error 87.
Insufficient privileges or permissions: The DISM tool requires administrative privileges to function correctly. Insufficient privileges or permissions can cause error 87.
Conflicting software or services: Conflicting software or services can interfere with the DISM tool, leading to error 87.

How to Fix DISM Error 87

Fortunately, fixing DISM error 87 is relatively straightforward. Here are some step-by-step solutions to resolve the issue:

Fixing DISM Error 87 — Technical Report

1. Check the Command Syntax

Run DISM with the correct capitalization and spacing:

DISM /Online /Cleanup-Image /RestoreHealth

Do not add extra spaces, e.g., /Cleanup-Image not /Cleanup -Image. DISM Error 87 Fixed: A Step-by-Step Guide to

Fix 3: Verify Your DISM Version Supports the Command

Older Windows versions (7, 8, early 10) don’t support all modern DISM parameters. Check your version:

DISM /?

Look for supported options:

/RestoreHealth – Added in Windows 8 / Server 2012. Not available in Windows 7 DISM.
/LimitAccess – Requires Windows 10 v1607 or later.
/ScratchDir – Requires Windows 10 v1703 or later.

If you’re on Windows 7: Use the System Update Readiness Tool (CheckSUR) instead of DISM. Corrupted system files Incorrect syntax or command line