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Qlik Sense Folder And Files To Exclude From Anti-Virus Scanning

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Qlik Sense Folder And Files To Exclude From Anti-Virus Scanning

Qlik Sense requires access to predetermined TCP and UDP ports to function. If anti-virus software prevents traffic on these ports, Qlik Sense may not function as expected. This can include running exe files, data connections, etc.

Qlik Sense constantly updates a number of log files and also relies on multiple config and binary files to function correctly. If these files and folders are being scanned by the anti-virus software, then this may cause upgrades/installation to fail, performance issues, or cause the services to fail.

For an example with Symantec see Antivirus exceptions for Qlik Sense- McAfee, Symantec & Other Anti-Virus exclusions absolutely requi...


  • Qlik Sense Enterprise for Windows June 2017 and later
  • Qlik Sense Desktop, all versions

The following folders should be considered for an exception:


Note 1: Verify requirements on the Qlik Sense Online Help for the installed version
Note 2: A machine reboot is required after exclusions are made
Note 3: For Qlik Sense Desktop additional locations, see the appropriate Qlik help page for the version being installed. See Installing Qlik Sense Desktop.

  • %ProgramData%\Qlik
  • All executables under %Program Files%\Qlik\Sense
  • All executables under %ProgramFiles%\Common Files\Qlik\Custom Data
  • Any QVD files (or folder where you save your QVDs) you may use to read/write during your reloads. 
  • The full share root folder location which includes the App folder configured in the Service Cluster. The app folder stores all app files. In latest releases of Qlik Sense, files with ".lock" extensions are generated, and each binary app file has its own .lock file. These file must be excluded from analysis as well.
  • It is not recommended to exclude the Static Content root folder in the Service Cluster, as this is the target location for end user uploads
  • If the PostgreSQL database is installed on another machine please refer to the PostgreSQL manual for more details https://wiki.postgresql.org/wiki/Running_%26_Installing_PostgreSQL_On_Native_Windows
  • Make sure that the Antivirus doesn't block  Qlik Sense from updating the keys in C:\ProgramData\Microsoft\Crypto\RSA\MachineKeys\ , as this will block the system bootstrap. Check Users are unable to re-create certificates using the bootstrap command for details. .

Ports to be excluded from Anti-Virus Monitoring / Blocking

  • See the relevant piece of documentation for your version of Qlik Sense: Help Site > Deploy > Planning your deployment > Architecture > Ports
  • Sophos Antivirus will require *  to be excluded


  • Make sure that the anti-virus is not blocking access to certificates stored in the following location and their private keys: Personal (Local Computer), Trusted Root Certification Authorities (Local Computer), Personal (Current User for the service account)

Note: Qlik Support cannot provide support and services for any Qlik Servers in which performance issues, port issues, installation, patching, or upgrading problems occur if these directories are not made exempt for any and all Anti-Virus solution. It will be best-effort, as the exclusions of these directories is a prerequisite to Qlik software.

Ref: Qlik Sense Help, Deploy > Troubleshooting - Deployment > Anti-virus software scanning affects performance


Labels (1)

Great article.

Our anti-virus software requires a more specific definition of: 

  • All executables under %Program Files%\Qlik\Sense
  • All executables under %ProgramFiles%\Common Files\Qlik\Custom Data

Could you explain which files that is included? Is it all *.exe or *.com or *.dll or specific files?

Contributor II
Contributor II

I also need a more specific definition of the exectuables under program files. Could you please explain?

Kind Regards

Linus Hansen

Digital Support
Digital Support

Hello @linushansen and @KristofferD 

The .exe files are the executables pointed out in this article. Depending on your version of Qlik Sense this may vary as we have added services between versions. 


All the best,



Thank you @Sonja_Bauernfeind . It is working for us now.

Version history
Last update:
‎2021-04-27 05:00 AM
Updated by: