What is atashost.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 atashost.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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Atashost.exe file information

Windows Task Manager with atashost
Atashost.exe process in Windows Task Manager

The process known as WebEx Host for Support Center belongs to software WebEx Support Center or WebEx Support Manager for Internet or WebEx Support Manager for or WebEx Service Host for Support Center by WebEx Communications ( or Cisco WebEx.

Description: Atashost.exe is not essential for Windows and will often cause problems. Atashost.exe is located in a subfolder of C:\Windows or sometimes in the C:\Windows\System32 folder. Known file sizes on Windows 10/8/7/XP are 20,376 bytes (40% of all occurrences), 43,912 bytes and 6 more variants. 
The program has no visible window. The atashost.exe file is certified by a trustworthy company. Atashost.exe is not a Windows core file. Atashost.exe is a Verisign signed file. Atashost.exe is able to monitor applications. Therefore the technical security rating is 22% dangerous, however you should also read the user reviews.

Uninstalling this variant: The developer Webex provides a website for help and for updates. There is also an uninstaller (Control Panel ⇒ Uninstall a Program ⇒ WebEx Support Manager for Internet).

Recommended: Identify atashost.exe related errors

Important: Some malware camouflages itself as atashost.exe. Therefore, you should check the atashost.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

came in when we opened cisco web ex, wasn't there before and wasn't part of download.

Summary: Average user rating of atashost.exe: based on 1 vote with 1 user comment. One user suspects danger.

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Best practices for resolving atashost issues

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

atashost.exe [all]