Dism Error 87 Fixed ❲2027❳
DISM /Online /Cleanup-Image /RestoreHealth Result: Error: 87 – The option is unknown.
Open CMD as Administrator. Step 2: Type DISM /? and press Enter. This shows the full help menu. Step 3: To see syntax for specific operations, use: dism error 87 fixed
DISM /Online: /? DISM /Image: /? DISM /Cleanup-Image /? If a particular switch doesn’t appear in the help list, it doesn’t exist in your version of Windows (e.g., some switches are only for Windows PE). If your path contains spaces or unusual characters, wrap the path in double quotes and escape spaces properly. and press Enter
In this comprehensive guide, we will explain what DISM Error 87 means, why it happens, and provide to fix it permanently. What is DISM Error 87? DISM (Deployment Imaging and Service Management) is a built-in command-line tool in Windows 10 and Windows 11. It is used to repair the Windows system image, including the recovery environment and Windows PE. DISM /Image: /
Let’s fix it. In 90% of cases, Error 87 is caused by a missing colon after Online . Many old tutorials omit the colon, but modern Windows versions require it strictly.
Typically displayed in the Command Prompt as Error: 87 – The option is unknown , this error halts your repair efforts immediately. While the message sounds vague, it is actually a very specific syntax error. The good news? It is almost always fixable within minutes.
DISM \Online \Cleanup-Image Right: DISM /Online: /Cleanup-Image
DISM /Online /Cleanup-Image /RestoreHealth Result: Error: 87 – The option is unknown.
Open CMD as Administrator. Step 2: Type DISM /? and press Enter. This shows the full help menu. Step 3: To see syntax for specific operations, use:
DISM /Online: /? DISM /Image: /? DISM /Cleanup-Image /? If a particular switch doesn’t appear in the help list, it doesn’t exist in your version of Windows (e.g., some switches are only for Windows PE). If your path contains spaces or unusual characters, wrap the path in double quotes and escape spaces properly.
In this comprehensive guide, we will explain what DISM Error 87 means, why it happens, and provide to fix it permanently. What is DISM Error 87? DISM (Deployment Imaging and Service Management) is a built-in command-line tool in Windows 10 and Windows 11. It is used to repair the Windows system image, including the recovery environment and Windows PE.
Let’s fix it. In 90% of cases, Error 87 is caused by a missing colon after Online . Many old tutorials omit the colon, but modern Windows versions require it strictly.
Typically displayed in the Command Prompt as Error: 87 – The option is unknown , this error halts your repair efforts immediately. While the message sounds vague, it is actually a very specific syntax error. The good news? It is almost always fixable within minutes.
DISM \Online \Cleanup-Image Right: DISM /Online: /Cleanup-Image
