What is snapman?

The genuine snapman.sys file is a software component of Acronis True Image by Acronis.
Snapman.sys is a kernel mode driver that belongs to Acronis True Image, a backup and disk imaging utility program designed for Microsoft Windows and Mac OS. Drivers enable hardware components to communicate with software without additional programming from the software developer. This is a critical component and should not be removed. Removing this file may result in a damaged boot partition and prevent the computer from booting. Acronis True Image can make an image backup of the entire system, including the operating system, system settings, user accounts, applications, files, etc. This image can be moved across different computers regardless of the make or model, and can even be uploaded to the cloud to be accessed from anywhere at anytime. Acronis International GmbH is a Swiss company that develops data protection solutions. The company primarily caters to small and medium-sized organizations and develops software for backup, disaster recovery, data access, and secure file sharing. Acronis was founded in 2003 and is currently headquartered in Schaffhausen, Switzerland.

SnapMan stands for Acronis Snapshots Manager

Snapman.sys is a Windows driver. A driver is a small software program that allows your computer to communicate with hardware or connected devices. This means that a driver has direct access to the internals of the operating system, hardware etc. The free file information forum can help you determine if snapman.sys is a Windows system file or if it belongs to an application that you can trust.

Run a free scan to check for snapman drivers in need of updating

Snapman.sys file information

The process known as Acronis Snapshot API or Apricorn Snapshot API belongs to software Acronis Snapshots Manager or Seagate DiscWizard by Acronis ( or Acronis International GmbH or Apricorn.

Description: Snapman.sys is not essential for the Windows OS and causes relatively few problems. The snapman.sys file is located in the C:\Windows\System32\drivers folder. Known file sizes on Windows 10/8/7/XP are 132,224 bytes (17% of all occurrences), 114,048 bytes and 20 more variants. 
The driver can be started or stopped from Services in the Control Panel or by other programs. The program is not visible. The service has no detailed description. It is not a Windows core file. Snapman.sys is digitally signed. It is a Verisign signed file. snapman.sys appears to be a compressed file. Therefore the technical security rating is 26% dangerous, however you should also read the user reviews.

Uninstalling this variant: If you are having problems with snapman.sys, you might want to uninstall the software Seagate DiscWizard or Acronis True Image Home using the Uninstall a Program function of Windows Control Panel (Windows: Start, Settings, Control Panel, Uninstall a Program) or look for help on the website.

Recommended: Identify snapman.sys related errors

Important: Some malware disguises itself as snapman.sys, particularly when not located in the C:\Windows\System32\drivers folder. Therefore, you should check the snapman.sys process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


User Comments

Dont remove/delete this file, Windows will NOT boot up
  clifton   (further information)
For Acronis Software If you remove it Windows will fail to load
it tends to slow computers down. its also dam near imposible to get rid of.
  daryl licked   (further information)
snapman.sys is a kernel mode driver with start type 1 (loaded by ntldr) therefore it can't be compressed, it's executed as a part of windows kernel so it does not create any visible process just as most of the other kernel-mode drivers.
  Alex Vlasov  
Snapman.sys is a file used by Acronis Partitioning software to provide the ability to recover damaged boot partitions during a DOS based recovery attempt. Removing these files will result in a damaged boot partition (Master Boot Record), and thus inability of the computer to start/boot into the OS.
  Tech   (further information)
part of Acronis True Image, a backup and recovery tool
  mee   (further information)
Acronis Snapman used by Apricorn to create disk images for disk drive upgrades. May have compatibility issues with Vista.
  nanomatrix   (further information)
Its a blended MS software that not a MS design but used by Windoz. Don't delete it, you may have legacy HDD drivers causing the problem. Check your drivers, uninstall the ones you don't need
  Button Brain   (further information)

Rating chart

Summary: Average user rating of snapman.sys: based on 12 votes with 8 user comments. 7 users think snapman.sys is essential for Windows or an installed application. One user thinks it's probably harmless. 3 users think it's neither essential nor dangerous. One user suspects danger.

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Best practices for resolving snapman issues

A clean and tidy computer is the key requirement for avoiding problems with snapman. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the 6resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the snapman.sys process on your computer, the following programs have proven to be helpful: ASecurity Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

snapman.sys [all]