The MMS.exe executable file is part of the Acronis Managed Machine Service process , which is a component of the Acronis Backup Software. Secondly, MMS.exe is a software component of Acronis True Image. This very same True Image provides data protection services such as system-wide backups, settings backups, application backups, file backups, and more.
In short, if you’re using any Acronis backup software, then MMS.exe will be a part of it. Generally, it is a digitally verified process and doesn’t cause any problems for your computer.
In this article, we’ll look at the executable file in more detail and see whether you should delete it or not.
What is the Purpose of MMS.exe?
MMS.exe is responsible for communicating requests between multiple Acronis products. Moreover, this file plays the main role in backing up and recovering your files , applications, and more.
So, removing it will stop or pause the backup, which is something you wouldn’t want to do if Acronis is your main backup software.
You can also upload the backups done by Acronis to the cloud for later access. The software is available on Windows, OSX, Android, or iOS.
Is MMS.exe Safe or a Virus?
MMS.exe is completely safe, and it’s not a virus or malware. The file poses no threat to Windows, and you can be assured that there won’t be any issues caused by it.
However, in this day and age, any malware can be disguised as real life. Fortunately, there are multiple ways to check if the file is original or a virus.
Firstly, make sure the file is located in a subfolder of Drive C > Program Files. It’s usually in either of the below locations:
- C:\Program Files\BackupClient\BackupAndRecovery\
- C:\Program Files (x86)\Acronis\BackupAndRecovery\
This file also has a digital signature, so you can check that as well by right-clicking on MMS.exe, selecting Properties, and selecting the Digital Signatures tab .
Can I Disable or Remove MMS.exe?
You can just uninstall the file if you no longer want to back up with Acronis. Or, to get rid of MMS.exe completely (if you want), then uninstall the Acronis Backup Software.
Having said that, it isn’t recommended to remove an executable file that doesn’t cause any trouble in Windows.
However, if you’re not sure whether the file is genuine or malware, then first run an antivirus scan. If the file does turn out to be a virus, you should indeed remove it. But generally, there won’t be any problems with MMS.exe.
Does MMS.exe Cause High CPU Usage?
MMS.exe can start using high RAM sometimes, but simply clearing the cache of Acronis will solve the issue. Still, that’s a very rare case and doesn’t happen often.
If it happens regularly, then again, there’s a chance that there’s malware in your file. In such cases, it is better to scan your computer and then reinstall Acronis if there’s a virus in MMS.exe or any of the other files.
If you’re facing some more issues related to Acronis Backup Software or certain files, then contact Acronis customer support and let them know about your issue. Afterward, they will give detailed instructions about what you should do to counter that particular problem.
How to Fix “Printer is in an error state” Issue?
The error “ WinRAR Error: Next Volume Is Required ” usually appears when you’re extracting a multi-part RAR archive and WinRAR can’t find (or can’t correctly identify) the next file in the sequence . This often happens when a volume is missing , stored in a different folder , or renamed in a way that breaks the archive’s expected order .
In this guide, we’ll go over the most reliable fixes confirmed by affected users, along with what each method is doing behind the scenes so you can choose the right one for your situation.
Important: To extract multi-volume archives, you should always start extraction from the first file in the set. This is usually file.part1.rar , or (in older sets) the main .rar file that comes before .r01 , .r02 , and so on.
1. Download and Place the Missing RAR File
WinRAR needs all parts of a multi-volume archive to complete extraction. This error usually appears when one of the volumes in a set like .part2.rar , .r01 , .r02 , .001 , and similar naming formats is missing . Downloading the missing volume and placing it in the same folder as the other parts allows WinRAR to continue extracting normally .
- Look at the error message or review the list of archive parts in the folder.
- Identify which volume is missing (for example, part2.rar , .r02 , .001 , etc.).
- Go back to the website or source where you downloaded the archive.
- Locate and download the exact missing file using the same naming format as the others.
- Make sure the new file name matches the pattern of the rest. Example: If you have file.part1.rar and file.part3.rar , the missing one must be file.part2.rar .
- Move the downloaded missing volume into the same folder as the other archive parts.
- Confirm that all parts are in a single folder before extracting.
- Right-click the first file in the series (usually part1 or the main .rar file) and select Extract Here or Extract to Folder .
- WinRAR should now detect all volumes and continue extraction normally .
2. Manually Browse & Select the Next Volume
Use this method only if the next volume already exists , but WinRAR is failing to detect it automatically. This can happen due to incorrect naming , the file being in a different location , or a temporary file access issue. Manually browsing helps WinRAR locate the correct volume and resume extraction without interruption .
- Right-click the first file in the series (usually .rar or part1.rar ) and select Extract Here or Extract to Folder .
- When WinRAR cannot find the next volume, it will show the “ Next Volume Is Required ” message.
- A small window will appear, allowing you to manually select the next volume .
- Use the file explorer window to locate the folder where the other archive parts are saved.
- Select the next part based on the naming order (example: select file.part2.rar after file.part1.rar ).
- Make sure the selected file matches the naming format of the archive (no extra characters like (1) and no mismatched numbering).
- WinRAR will resume extraction using the selected volume .
- If additional volumes are missing or stored separately, WinRAR may prompt you again. Repeat the same process until extraction completes.
3. Rename the RAR files in Order
WinRAR relies on a proper naming sequence (such as file.part1.rar , file.part2.rar , file.part3.rar ) to extract multi-volume archives. If a file is named incorrectly, contains extra characters, or is out of order, WinRAR may fail to locate the next volume and show this error. Renaming the files correctly helps WinRAR follow the sequence and extract the archive without interruptions .
Note: Renaming only changes the file name , not the file contents. The goal is to restore the correct sequence so WinRAR can detect the next volume.
- Go to the folder where all the RAR files are saved.
- Make sure all parts of the archive are present and stored in the same folder .
- Check how the parts are currently named . Common patterns include:
file.part1.rar, file.part2.rar, file.part3.rar
file.rar, file.r01, file.r02, file.r03
- Look for files that don’t match the expected numbering pattern (for example, file.part01.rar , file.part1(1).rar , or unrelated names).
- Rename each file so it follows the same order without extra characters or mismatched numbering. Example:
Incorrect: file.part1.rar, file.part3.rar, file.part2(1).rar
Correct: file.part1.rar, file.part2.rar, file.part3.rar
- Make sure the text before the number is exactly the same for all files.
- Only the last part number should change.
- Right-click the first file in the series (usually part1.rar or the main .rar file) and select Extract Here .
- WinRAR should now recognize the sequence and continue extraction normally .
If you still get the same prompt: the archive set is likely incomplete (a part was never downloaded or was removed), or one of the volumes is corrupt and must be re-downloaded from the original source.
