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Support Article

User gets the 'Stop running this script?' warning popup



User sporadically receives the 'Stop running this script?' error popup.

Error Messages

"Stop running this script? A script on this page is causing Internet Explorer to run slowly. If it continues to run, your computer might become unresponsive."

Steps to Reproduce

There are no specific steps inorder to consistently reproduce the issue. The nature of the issue is very intermittent.

Root Cause

The root cause of this problem is software use or operation error. 
A specific case that happened only with Citrix users.

The error is typically seen as below:


This issue is resolved through the following local-change: 

The issue is sporadic with no specific use-case, consider setting the "MaxScriptStatements" DWORD value as explained below: 
1. Using a Registry Editor such as Regedt32.exe, open this key:
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Styles
Note: If the Styles key is not present, create a new key that is called Styles.

2.Create a new DWORD value called "MaxScriptStatements" under this key, and set the value to the desired number of script statements.

If not sure about which value must be set, then set it to a DWORD value of 0xFFFFFFFF to avoid the dialog box.

Please refer to the microsoft kb article # 175500 with description : "A script on this page is causing Internet Explorer to run slowly" to learn more about this issue.


Published January 31, 2016 - Updated October 8, 2020

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