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Manually uninstalling WinZip

Article ID: 244
Last updated: 21 May, 2014
Views: 81259

If you are not able to uninstall WinZip using the appropriate applet in the Control Panel, you may be able to uninstall manually. Uninstall issues can occur for a variety of reasons. It is even possible that you will not find WinZip in the list of programs that can be uninstalled.

You may want to refer to some of the information in Command Line Basics when following these instructions.

To uninstall manually:

  1. Open the WinZip folder, usually in the Program Files folder
    Note: If you have a 32-bit version of WinZip on a 64-bit version of Windows, you will need to open the Program Files (x86) folder
  2. Press CTRL+A on the keyboard to select all of the WinZip program files
  3. Right click anywhere in the highlighted area and choose Properties
  4. Click the box next to Read Only until it is clear (no check mark, not colored)

Clear the Read Only box

  1. Click OK
  2. Select the radio button next to "Apply changes to the selected items, subfolders and files" in the Confirm Attribute Changes dialog

Clear the Read Only box

  1. Click OK
  2. Click Continue in the Access Denied dialog, if it displays
  3. Open a Command Prompt window:
    Windows 8
    1. On the Desktop, swipe left or move the cursor to the bottom right
    2. Tap or click Search
    3. Find Command Prompt listed below Windows System and right click it
    4. Tap or click Run as administrator
    5. Click Yes in the User Account Control dialog (if one displays)
    Windows 7 or Windows Vista
    1. Click Start, click All Programs, and click Accessories
    2. Right click Command Prompt and choose Run as administrator
    3. Click Yes in the User Account Control dialog (if one displays)
  4. In the Command Prompt window type the appropriate line below (32-bit WinZip or 64-bit WinZip):
    "%ProgramFiles%\WinZip\winzip32" /uninstall
    "%ProgramFiles%\WinZip\winzip64" /uninstall
  5. Press Enter on the keyboard
  6. Respond to the dialogs that display to uninstall WinZip
  7. Restart your computer
  8. Delete the WinZip folder in the Program Files folder (removing all remaining files and subfolders)

If WinZip was on the uninstall list when you first tried uninstalling, continue with the steps below.

  1. Open the Registry Editor
    Windows 8:
    1. Open to or change to the Start menu screen
    2. Type: REGEDIT (this will show in the Search page)
    3. Press the Enter key on the keyboard
    Windows 7 and Windows Vista
    1. From the taskbar, click on the Start button
    2. Directly above Start, type: REGEDIT
    3. Press the Enter key on the keyboard
  2. Press the Enter key on the keyboard
  3. Click Yes in the User Account Control dialog if necessary
  4. Browse to:

    (You will find a letter or number as the last 2 characters rather than question marks) to do this, click the triangle or plus sign next to each item listed until you get to {CD95F661-A5C4-44F5-A6AA-ECDD91C240??}
  5. Click on {CD95F661-A5C4-44F5-A6AA-ECDD91C240??} to display its contents in the right pane of the Registry Editor and make certain that the DisplayName string value shows this to be WinZip
  6. After clicking {CD95F661-A5C4-44F5-A6AA-ECDD91C240??} to select it, press Delete on the keyboard
  7. Respond to the warning dialog that displays and close the Registry Editor

If you need assistance, please send an email message to Technical Support.

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