Windows - ZoneAlarm complete Re-installation

October 2016

If you are encountering some difficulties to reinstall ZoneAlarm, here are some tips.

Note that:
  • This work for all versions of ZoneAlarm
  • Use Administrator account to perform the operation below.
  • Better download the latest version available.
  • Save the downloaded file (set up) to a folder on your Hard Disk as C:\Programs. Do not use "Open" or "Run" on the file.


  • Restart the computer in Safe Mode (press "F8" during startup)
  • Open Windows Explorer, then go to Tools/File Options/Display and enable the

function "Show all files and folders"
    • The folders and files must be erased:

Zone Labs (C:\Programmes\ZoneLabs ou
C:\WINNT\Zone Labs)
Internet Logs (C:\Windows\Internet Logs ou
C:\WINNT\Internet Logs)
Zone Labs (C:\Windows\System32\ZoneLabs ou
    • Click on Start/ Find Files or data and then find and delete the following files:

- vsconfig.xml
- vsxml.dll
- vsregexp.dll
- vsdata.dll
- vsdata95.vxd
- vsdatant.sys
- vsmonapi.dll
- vspubapi.dll
- vsinit.dll
- vsutil.dll
- zlcommdb.dll
- zlcomm.dll

3. Delete temporary files of Windows:

- Start/Run
- Enter %temp% , then click "OK"
- In the next window select all files, then delete them.

4. Empty the Windows Prefetch folder:

- Click on Start/Run
- Enter Prefetch and click "OK"
- In the next window select all files and delete them.

5. Then edit the Windows registry:

Click on Start/Run and then type regedit

- In the next window remove the following key:

    • Finally, empty the Recycle bin restart the computer again.
    • Save the downloaded file on your computer. Do not change the name of this file and save it on drive C:\
    • Start the installation by double-clicking the downloaded file and follow the onscreen instructions

At the beginning of the installation process it displays a registration. It is strongly recommended to insert data into

each field of registration.
    • Run the software as a trial version and activate it by inserting the license key on the "Presentation" tab /"Product Info" button "Modify the license."


Insert the key using copy and paste (select the whole key, and then press simultaneously keys Ctrl + C, click in the field of integration, then simultaneously press the Ctrl + V).

Now your software should run properly.

Related :

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