What is RtDCpl.exe?

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 RtDCpl.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.

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RtDCpl.exe file information

Windows Task Manager with RtDCpl
RtDCpl.exe process in Windows Task Manager

The process known as Realtek (version AC97 Audio Control Panel) or HD Audio Control Panel belongs to software Realtek (version AC97 Audio Control Panel) or Realtek High Definition Audio Driver by Realtek Semiconductor (

Description: RtDCpl.exe is not essential for the Windows OS and causes relatively few problems. RtDCpl.exe is located in the C:\Windows\System32 folder. The file size on Windows 10/8/7/XP is 12,298,240 bytes. 
The program has no visible window. It is not a Windows system file. RtDCpl.exe is able to record keyboard and mouse inputs. Therefore the technical security rating is 50% dangerous.

Recommended: Identify RtDCpl.exe related errors

If RtDCpl.exe is located in a subfolder of "C:\Program Files", the security rating is 41% dangerous. The file size is 2,691,072 bytes. The RtDCpl.exe file is a trustworthy file from Microsoft. The program is not visible. The process starts upon Windows startup (see Registry key: MACHINE\Run). The file is not a Windows system file. It can change the behavior of other programs or manipulate other programs. RtDCpl.exe is able to record keyboard and mouse inputs.

Uninstalling this variant: If you encounter difficulties with RtDCpl.exe, you can uninstall the associated program (Start > Control Panel > Uninstall a Program > Realtek High Definition Audio Driver).

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


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Best practices for resolving RtDCpl issues

A clean and tidy computer is the key requirement for avoiding problems with RtDCpl. 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 RtDCpl.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

RtDCpl.exe [all]