What is DISM tool?
DISM(short for Deployment Imaging Servicing Management), preinstalled on Windows 8.1 and Windows 10, is commonly used to repair and prepare Windows images on Windows Recovery Environment, Windows Setup, Windows PE.
Working as a system management tool, it can help you resolve corrupted system files, even when SFC SCANNOW not working.
Why do you receive DISM error in Windows 10?
DISM error 87: the parameter is incorrect may be the outcome of a small mistake, such as, typing the wrong command when using DISM /CheckHealth or DISM /ScanHealth. Thus, the first thing is to make sure that you type the right command.
Then, see the possible reasons in the following and confirm your own cause for this issue.
1. Windows 10 Update error. After DISM find a corrupted images or files, it will use Windows 10 Update to download the necessary files. If Windows Update failed, the process will be interrupted.
2. Attempting to copy a file over 48GB from one partition to another partition using DISM /AddPackage.
3. A required service does not start, such as, you cannot connect to a network.
Fixed – DISM error 87: the parameter is incorrect
Method 1: Use DISM command-line correctly
Users often forget to add a space before the slash and type the command like below.
To type the command correctly, you need to add a space before the slash. Just like the following command.
DISM /online /cleanup-image /checkhealth
Method 2: Revert Windows Update and clear Component Store
Windows Update can be a cause for DISM error 87. To fix this issue, you can restore Windows Update to a previous good state and clean up the component store. It supports Windows Updates, installations and configurations.
Step 1. Type cmd in the search box and run as administrator.
Step 2. Type the following command to revert Windows Update and hit Enter. Then, restart your computer and save these changes.
dism.exe /image:C: /cleanup-image /revertpendingactions
Step 3. Type the command below and hit Enter. After that, restart your computer and make these changes available.
dism.exe /online /cleanup-image /startcomponentcleanup
Now, the component store and potential corrupted files may be cleaned up. You are likely to run DISM well on Windows 10.
Method 3: Run SFC /SCANNOW tool
SFC /SCANNOW can also fix the corrupted files. You can try it first and run DISM again.
Step 1. Run cmd as administrator.
Step 2. Type sfc /scannow in the command prompt window and hit Enter.
Step 3. Run DISM again.
Method 4: Run CHKDSK tool
Some users report the CHKDSK can solve DISM error 87 in Windows 10. Try it if you have on idea.
Step 1. Run cmd as administrator.
Step 2. Type chkdsk C:/r in the command prompt window and press Enter. Type Y if you are asked to run at the next time you start your computer.
Step 3. Run DISM again and check if this issue disappears.
Method 5: Run System Restore
In most cases, System Restore can solve your can be last one you can try. It can solve DISM error 87: the parameter is incorrect but you need to reinstall certain software.
Step 1. Type system restore in the search box and select it.
Step 2. In the first screen, you are told that the recently installed programs will be removed. If you want to continue this operation, click Next.
Step 3. Select the restore point in the list and click Next.
Step 4. Click Finish to start the restore process.
Sure-fire way to DISM error 87 in Windows 10
You cannot expect that every problem has a solution. Before the irreversible error occurs, you are supposed to do something.
In my opinion, you can create a backup for your computer and save it to external storage device, such as, external hard drive, USB flash drive, cloud drive, NAS. Only in this way, you can protect your computer, even system crashes.
To do so, you can use free backup and restore software AOMEI Backupper. It can help you protect your computer with a backup image. Once something bad happen to your computer, you can restore backup image to your computer.
To serve users in a better way, AOMEI Backupper offers you more useful features. You can create a schedule backup at daily, weekly, monthly and event-trigger. Also, you can create a differential backup or incremental backup to save disk space. If your disk lack of space, you can try to delete old backup via Backup Scheme.
Besides, AOMEI Backupper recently adds a magic feature called USB plug in. With this feature, you can backup to USB when plugged in. That’s to say, the USB drive was recognized at the first time when you use it to create a task and then the task will be automatically started when the recognized USB is inserted into your computer again.
To create a system image backup:
Step 1. Download free AOMEI Backupper, install and launch it.
Step 2. Click Backup and System Backup in order.
Step 3. Select a location for your backup. If you want to save it to USB, you need to insert the disk into your computer first.
Step 4. Set up settings if needed.
Step 5. Click Start Backup to run the pending operation.
To fix DISM error 87: the parameter is incorrect, you can try above ways and it may solve this issue. But you need to take action in advance. If you do not want to reinstall your computer, you need a backup image.