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Free Image Format ConversionDISM stands for Deployment Image Service and Management. It is a pre-installed tool in Windows 7, 8, 10, 11, and Windows Server R2 that offers services related to the recovery and repair of Windows images.
You can access the DISM tool through Windows PowerShell or the Command Prompt on your computer. When a Windows image becomes unworkable, the DISM tool can update files and fix issues.
Overview of DISM Error 87
However, unfortunately, when executing the DISM tool, you might encounter the DISM error code 87: The option is unknown. Let's begin by exploring the causes of this DISM error 87 to determine the root cause of the issue in our system.
There are multiple potential reasons for the DISM error 87 in Windows 11/10/8/7, and here are a few of them:
- The command or the parameters provided are incorrect.
- Unsupported command in Elevated Command Prompt.
- Incompatible DISM version.
- Your system failed to start a required service, such as a network connection issue.
- Windows Update failure.
In most cases, the user will need to promptly repair or update Windows and download the necessary files. However, this poses an open invitation to data loss during the process.
Relax, don't worry! We've got you covered. All your concerns will be addressed in this tutorial. The upcoming section provides the ideal solution to save your data. Here's how to rectify the DISM error 87 - 'the option is unknown' issue, and restore your lost data.
Recover Lost Data Before Repairing Windows 11/10
It is always advisable to recover your data before initiating the Windows repair process. There is a significant risk of accidental data loss during the repair, and therefore, for safety purposes, it is essential to back up all important files beforehand.
The next concern is how to back up your data and which tool to utilize. The Data Recovery Wizard is an excellent tool to consider when searching for a reliable data recovery software.
Here are a few scenarios where you might need to use a data recovery app:
- Data loss from accidental deletion
- Damaged storage drive
- Accidental formatting of a drive or partition
- Data corruption caused by errors
Equipped with its three-step procedure, you can swiftly and efficiently retrieve your data. The best part is that Data Recovery Wizard does not require any prior technical or computer expertise.
The app even enables you to recover data from deleted, hidden, lost, or RAW partitions (fix raw partition without losing data). It also allows you to retrieve data from unbootable or crashed systems.
Furthermore, the software can be downloaded within just a few minutes and starts scanning your computer with a simple click. It supports a wide range of document formats and can also be utilized for storing images, videos, audio, and other media files. Its compatibility with all versions of the Microsoft Windows operating system makes it stand out.
Follow the steps outlined below to retrieve your data with the assistance of the tool Data Recovery Wizard:
Step 1. Launch the Data Recovery Wizard tool. Select the drive where you lost your files and initiate the scanning process. This software enables you to recover lost data from various devices, including HDD, SSD, USB drive, SD card, pen drive, camera, and so on.
Step 2. Browse the full scan results. You can select the file type you need by clicking on the file type filter. The data recovery software supports over 1000 file types, including photos, videos, documents, emails, audio files, and many more.
Step 3. Select the files you wish to preview. Click "Recover" and choose a storage location to save the retrieved data.
How to Fix DISM Error 87: Option is Unknown
Now that we have accomplished the most challenging yet critical stage of retrieving our data to rectify the DISM error 87, it is safe to proceed further in this tutorial.
Let's explore five effective methods to resolve the DISM error 87 - the option is unknown.
You can also refer to a detailed video tutorial that guides you through the steps to fix DISM error 87. Make sure to note the following key points:
- 00:14 Use an elevated command prompt
- 01:10 Ensure proper spacing
- 02:38 Reset Windows 10
- 02:49 Utilizing Recovery options
Quick Navigation:
Fix 1: Enter the Correct DISM Command-Line
If you encounter an issue with the Deployment Image Servicing and Management (DISM) tool, make sure you're typing the correct command line. Here's how to do it:
1. Open the Command Prompt as an Administrator:
- Press `Win + X` on your keyboard.
- Click on "Command Prompt (Admin)" or "Windows PowerShell (Admin)" depending on your Windows version.
2. Type or paste the following command, replacing `` with the appropriate DISM operation you want to perform:
```
DISM.exe /Online /Cleanup-Image /
```
For example, if you want to scan for corruption, use:
```
DISM.exe /Online /Cleanup-Image /ScanHealth
```
If you want to restore health, use:
```
DISM.exe /Online /Cleanup-Image /RestoreHealth
```
3. Press `Enter` to execute the command.
4. Wait for the process to complete. This may take some time, especially when restoring health.
5. If prompted, follow any additional instructions or provide necessary permissions.
6. Once finished, close the Command Prompt and restart your computer to see if the issue is resolved.
Remember to always double-check the syntax and parameters before executing any command to avoid errors. If you're unsure about a specific command, consult the official Microsoft documentation or seek assistance from a professional.
Writing an incorrect DISM command is one of the most foolish mistakes. Hence, whenever you come across DISM error 87, make sure to double-check your command.
Here are a few things to consider when examining the commands:
- Spelling errors.
- There must be a space before every slash in the command.
- Use of correct format and sequence.
Example:
DISM/Online/Cleanup-Image/Scanhealth (incorrect)
DISM /online /cleanup-image /scanhealth (corrected)
After implementing the necessary changes, verify if your issue has been resolved. If you continue to encounter DISM Error 87, proceed to the next solution on the list.
Fix 2: Run the SFC or SCANNOW Tool
There's a significant possibility that you're encountering the DISM error 87 because of corrupted system files on your computer. The objective here is to scan and fix all the corrupted system files that are causing this error.
Let's examine how to fix errors caused by corrupted system files using an integrated Windows tool called System File Checker, or SFC.
Step 1. Look for the Command Prompt in the search bar of Windows 10.
Step 2. Choose the "Run as administrator" option to continue.
Step 3. In the Command Prompt, type "sfc/scannow" and press the Enter key to proceed.
Step 4. Wait for the verification to be completed 100%.
Important: Do not close the command prompt window before the verification reaches 100%.
This will repair all the corrupted system files that exist on your computer. Translation: This will fix all the corrupted system files present on your computer.
Now, examine the Command Prompt to see if the DISM error 87 has been rectified. Proceed to the next solution if this doesn't resolve the issue for you.
Fix 3: Run the CHKDSK Tool
If you're reading this fix, we assume that your problem still persists. Hopefully, CHKDSK will address the issue. The DISM error 87 you're encountering might be due to some disk-related problems.
The CHKDSK tool examines whether the data on disks is in a stable condition or not. Here, you'll learn how to utilize the CHKDSK utility to address your issue. The steps involved are as follows:
Step 1. Run the Command Prompt as an administrator.
Step 2. Type the "chkdsk C:/r" command in the command prompt window and press "Enter."
Step 3. It will ask, "Would you like to schedule the volume to get checked the next time the system restarts?" Type "Y," and the process begins.
This will assist in identifying and resolving any issues associated with the drive. Restart the Command Prompt and verify if the DISM error 87 has been resolved.
If the error persists, the underlying cause must be addressed in the forthcoming solution presented in this tutorial.
Solution 4: Run Windows Update
DISM might also produce error 87 if your Windows is not up-to-date. In this scenario, you need to verify for available updates and download and install them. Here are the steps to update Windows on your system: 1. Press the 'Windows' key + 'I' to open the Settings app. 2. Click on 'Update & Security.' 3. On the left panel, select 'Check for updates.' 4. Windows will now search for any available updates. If there are any, they will be downloaded automatically. 5. After downloading, click on 'Install updates' to proceed with the installation process. 6. Restart your computer if prompted to complete the update. Make sure you're connected to the internet throughout the process. If you encounter any issues or the updates don't appear, you can also try using the 'Windows Update Troubleshooter' from the 'Troubleshoot' section in the settings.
Step 1. Open Settings by pressing the Windows key and the I key.
Step 2. Select the Update & Security option to proceed.
Step 3. Navigate to the Windows Update tab and click on the Check for Updates button.
Step 4. If your Windows is up-to-date, it will display that the latest version of Windows is already installed. If not, click on the download and install button.
Step 5. Your system will prompt you to restart after the update is successful. Restart your computer.
Once the system update is complete, run Command Prompt as an administrator and check for DISM error 87. If the issue was caused by system updates, it should no longer appear.
However, there's a chance you're still encountering the DISM error. Let's explore another solution to fix this issue.
Fix 5: Restore/Reinstall Windows
The final solution in this tutorial is to reinstall Windows. Since none of the previous solutions managed to fix the DISM error 87, our last resort is to reinstall the operating system on your device. Follow the steps outlined below to reinstall Windows on your system:
Step 1. Reinstalling Windows on your system can result in data loss. Therefore, it is recommended to back up all your files before proceeding.
Step 2. After backing up your data, go to the Start menu > Settings > Update & Security > Recovery.
Step 3. Under the "Reset this PC" tab, click on Get started.
Step 4. In the "Choose an option" window, select "Keep my files" to ensure no data loss.
Step 5. Click Next.
Step 6. Click the Reset button in the "Ready to reset this PC" window.
Step 7: Restart your computer now. Your Windows installation has been refreshed.
Now, we need to open the Command Prompt in administrative mode and verify if the DISM error 87 has been resolved. We hope this solution was assistive to you.
Summary: This text provides a brief summary of the content. It highlights the key points or main ideas in a concise manner, allowing readers to quickly grasp the essence of the information presented.
In this tutorial, we have explored DISM (Deployment Image Servicing and Management) and the reasons for encountering DISM error 87 in Windows 11/10/7. Subsequently, we have also delved into five solutions to resolve the DISM error 87 without compromising your computer files and data.
Data Recovery Wizard has simplified the process even further, making it more seamless and worry-free by providing its robust and dependable data recovery tools. For a clearer understanding of each solution, you can also consult the video tutorial mentioned in the article.
"DISM Error 87" FAQs
The solutions offered in the article are tailored for beginners, with each step outlined in meticulous detail, accompanied by pictures for your guidance. Rest assured, any queries you might have will undoubtedly be addressed in the Frequently Asked Questions (FAQs) section below.
Error 87: The parameter is incorrect refers to an error in computing or software systems where a user or program supplies a wrong or invalid parameter to a function, command, or operation. This can occur due to various reasons such as incorrect input data, misconfigured settings, or attempting an operation that is not supported by the system. The error message typically indicates that the provided parameter does not meet the expected criteria or format, resulting in the failure of the requested action.
"The parameter is incorrect" issue can occur due to corrupted system files or when necessary services are not functioning properly. To resolve this problem, attempt to manually install the latest drivers on your computer. However, if the error persists, run the CHKDSK utility to rectify the issue.
2. How do I repair a corrupted DISM?
A corrupted DISM (Deployment Image Servicing and Management) usually happens when the system files in a computer's operating system get messed up. To fix this, you can heal the broken DISM by checking all the files on the PC and mending any that are damaged. For a proper fix, run the System File Checker (SFC) or type 'sfc /scannow' in the command prompt to sort out that corrupted DISM.
3. How do I resolve the DISM Online Cleanup-Image RestoreHealth issue?
Follow these steps to fix the DISM Online Cleanup-Image RestoreHealth issue:
Step 1. Run Command Prompt as an administrator.
Step 2. Type "sfc /scannow" and press Enter.
Step 3. Type "Dism.exe /online /cleanup-image /StartComponentcleanup" and press Enter.
Step 4. Type "Dism.exe /online /cleanup-image /CheckHealth" and press Enter.
Step 5. Type "Dism.exe /online /cleanup-image /ScanHealth" and press Enter.
Step 6. Type "Dism.exe /online /cleanup-image /RestoreHealth" and press Enter again.
The issue with the DISM online cleanup image should be resolved.
How do I resolve error 87 with the Deployment Image Servicing and Management (DISM) tool in Windows 7?
There are multiple methods to resolve error 87 with DISM on Windows 7. Begin by ensuring that the command is typed accurately without any errors. Next, execute the System File Checker (SFC) utility, followed by running the SCANNOW and CHKDSK commands to rectify the issue.
You can also run any available Windows updates and try to restore/reinstall Windows to see if this fixes the error.