How to Remove “YTSingleInstance.dll”

What is YTSingleInstance.dll?

The file named YTSingleInstance.dll is developed by Yahoo! Incorporation. The company has verified and signed the file for its authenticity. It is confirmed to be safe in most scan reports. The program is used by the Yahoo single instance for Mail program and other relevant software. The threat level is 1.

YTSingleInstance.dll is located in C:\Program Files\yahoo!\companion\installs\cpn1\ytsingleinstance.dll. The size of the DLL is 159.3 kilobytes. The version of the DLL known is The file being a non-system process has no consequences if removed due to a virus or malware infection. It won’t have any impact on the performance of the Windows operating system if disabled or removed.

Affected Platform: Windows 2000, XP, Vista

How to detect whether your system is affected by YTSingleInstance.dll?

Viruses can easily affect and corrupt “.exe” files causing several system malfunctions. Below are the symptoms to check if your system is infected with the malware:

  • Problem during computer start-up.
  • Problem during program start-up.
  • Errors while running specific functions.
  • Damaged and missing link files.
  • Conflict in the process.
  • Missing or corrupted driver files.
  • Invalid Windows registry.
  • Hardware malfunction.

To further establish the infection of malware, take the following steps:

  • Go to Task Manager by pressing the combination of keys CTRL+ALT+DEL.
  • Go to the process tab and right-click on the YTSingleInstance.dll file and open its location.

If the file is located outside C:\Program Files\yahoo!\companion\installs\cpn1\ytsingleinstance.dll, then you should perform an antivirus scan to get rid of the malware infection.

How does Comodo Antivirus help you to protect your system from YTSingleInstance.dll malware?

Comodo Antivirus protects your system from malware attacks and also removes any existing infections. Following are the steps to effectively purge out the YTSingleInstance.dll malware from your system.

Step 1: Download and install Comodo Antivirus.

Step 2: Installation configuration frames will be displayed. Select the configuration you would like to apply.

Step 3: Select Customize Configuration option and arrange installers, configuration, and file location.

Step 4: Restart your PC.

Step 5: Wait until the Comodo Internet Security updates the antivirus.

Step 6: Initiate a quick scan that instantly begins after the update.

Step 7: If the system is infected with YTSingleInstance.dll malware or any other threats, you will be prompted with an alert screen upon scanning.

Step 8: Comodo Antivirus will remove YTSingleInstance.dll malware from your computer including all other malwares!

Exclusive Offer
Get Free Endpoint Protection
Get Advanced

Award-Winning Security to Protect Your Clients from Cyber Attacks

Comodo Internet Security Pro

Antivirus Protection protection from hackers! Get the ultimate Antivirus solution to keep your PC clean and to remove viruses from a slow or infected PC. Improve the PC performance at home or use it on-the-go!

Get Comodo Internet Security Comodo Internet Security