What is rsmsink.exe?

The genuine rsmsink.exe file is a software component of Microsoft Windows Operating System by Microsoft.
A layer of the Windows Removable Storage Manager, this process allows multiple processes and applications to share aspects of removable storage. The Windows Removable Storage Manager is no longer supported as of Windows 7 and Windows Server 2008 R2. Founded in 1975 in New Mexico, Microsoft is now one of the largest software corporations in the world. Currently headquartered in Washington, the flagship Windows operation system is the most utilized OS in the world.

RSMSink stands for Removable Storage Manager Sink Layer

The .exe extension on a filename indicates an executable file. Executable files may, in some cases, harm your computer. Therefore, please read below to decide for yourself whether the rsmsink.exe on your computer is a Trojan that you should remove, or whether it is a file belonging to the Windows operating system or to a trusted application.

Click to Run a Free Scan for rsmsink.exe related errors

Rsmsink.exe file information

Windows Task Manager with rsmsink
Rsmsink.exe process in Windows Task Manager

The process known as Removable Storage Sink Layer or Wechselmedien-Datensenkenebene belongs to software Microsoft Windows Whistler Operating System or Betriebssystem Microsoft Windows Whistler by Microsoft (

Description: The original rsmsink.exe is an important part of Windows and rarely causes problems. The file rsmsink.exe is located in the C:\Windows\System32 folder. Known file sizes on Windows 10/8/7/XP are 24,576 bytes (80% of all occurrences) or 43,520 bytes. 
It is a Windows core system file. The program is not visible. The rsmsink.exe file is a Microsoft signed file. Therefore the technical security rating is 22% dangerous, however you should also read the user reviews.

Recommended: Identify rsmsink.exe related errors

Important: Some malware disguises itself as rsmsink.exe, particularly when not located in the C:\Windows\System32 folder. Therefore, you should check the rsmsink.exe 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

rsmsink.exe is part of Removable Storage Manager developed by Microsoft.
heard about it today for the first time, but my computer didn't read my USB sticks today and as I see this process active in process explorer for the first time ever, I am wondering why.
My older computer Dell 3 gig running windows xp has been starting up extremely slowly and I checked task manager and rsmsink.exe was using 97% of my processing power. there were three different lines in the line up. I deleted them all and got my power back.

Summary: Average user rating of rsmsink.exe: based on 1 vote with 3 user comments. One user thinks it's probably harmless. 2 users don't grade rsmsink.exe ("not sure about it").

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Best practices for resolving rsmsink issues

A clean and tidy computer is the key requirement for avoiding problems with rsmsink. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic 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 resmon 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 DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the rsmsink.exe process on your computer, the following programs have proven to be helpful: Security 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. Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

rsmsink.exe [all]