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Unable to uninstall Gateway

Option 1: Run Microsoft InstallAndUninstall fixer

https://support.microsoft.com/en-us/help/17588/fix-problems-that-block-programs-from-being-installed-or-removed

Option 2: Uninstall manually

1. Stop services

  1. Go to Task Manager tab ‘Services’
  2. Stop the Gateway service
  3. Stop the GatewayServer service

2. Delete services

  1. Run cmd.exe as admin
  2. Type following text and hit ENTER.
    sc delete Gateway
  3. Type following text and hit ENTER.
    sc delete GatewayServer

3. Remove the installed files from the disk

  1. Delete the content of the folder C:\program files(x86)\BuildSoft\Gateway.

4. Remove the old installer from the disk

  1. Open Windows Explorer. Copy-paste C:\Windows\Installer in the address field.
  2. Show column ‘Subject’ to show the name of the installer because the msi-files have a random name.
  3. Remove the folder AND source file related to the installer. The folder is defined by the installer’s ProductIdGUID:
      • Gateway 1.11
        • ProductIdGUID = {BC87FE7B-89F4-4913-AD56-B82B6ADD881C}
        • RandomGUID = B7EF78CB4F983194DA658BB2A6DD88C1
      • Gateway 1.12
        • ProductIdGUID = {CE764938-5481-455E-96C5-ADF873788966}
        • RandomGUID = 839467EC1845E554695CDA8F37879866
      • Gateway 2.00
        • ProductIdGUID = {42E409A0-3363-4CC1-BD64-9B7EA6226DAC}
        • RandomGUID =0A904E2436331CC4DB46B9E76A22D6CA
      • Gateway 2.03
        • ProductIdGUID = {DA22B7EB-BDA4-47E4-826E-9F9B99BEB168}
        • RandomGUID =BE7B22AD4ADB4E74F9B999EB1B68
      • Gateway 2.04
        • ProductIdGUID = {37CAA129-2F04-4C9A-8B91-9443444EF0D3}
        • RandomGUID = 921AAC3740F2A9C4B819493444E40F3D
      • Gateway 2.05
        • ProductIdGUID = {1F528EEC-620E-461E-87DF-3E54CCE2090E}
        • RandomGUID =CEE825F1E026E16478FDE345CC2E90E0
      • Gateway 2.06.0001
        • ProductIdGUID = {675D3BBC-A098-48A5-93C7-E613A63DD56F}
        • RandomGUID =CBB3D576890A5A84397C6E316AD35DF6

    Remark: RandomGUID = ProductIDGUID, first 3 strings backwards, then 2 by 2 backwards

5. Edit the Windows Registry

  • Go to Start > Regedit > Run as administrator.
a. Delete the “Programs and features” entry

Delete the registry key, it can be in 1 or both of following locations:

  1. Copy-paste HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\ in the address field.
  2. Do a search (CTRL + F) for Gateway. 
    • If no hit is found in that address, go to step 3.
    • If a hit is found, make sure that the key is a BuildSoft key. Multiple companies use the name Gateway for a component in their software. 
      • Contact & Publisher (at red arrows) should mention BuildSoft.
      • The ProductIdGUID (at green arrow) of key can be found in the list of STEP 4.
    • Select the ProductIdGUID (at green arrow) and hit DEL.
    • Repeat until no hits are longer found in that address.
  3. Copy-paste HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\ in the address field.
  4. Do a search (CTRL + F) for Gateway. 
    • If no hit is found in that address, go to step 3.
    • If a hit is found, make sure that the key is a BuildSoft key. Multiple companies use the name Gateway for a component in their software.
      • Contact (at red arrow) should mention buildsoft.eu.
      • The ProductIdGUID (at green arrow) of key can be found in the list of STEP 4.
    • Select the ProductIdGUID (at green arrow) and hit DEL.
    • Repeat until no hits are longer found in that address.
b. Delete the registry key that points to the uninstaller

Repeat the principle in a. for the following keys.

  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\[InternalUserId]\Products\[randomGUID]
  • HKEY_CLASSES_ROOT\Installer\Products\[ProductId GUID]

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