Unable to uninstall Gateway

1. Determine the corrupt version of Gateway

1. In Control Panel > Programs and features > Remove a program, you see multiple treads of Gateway.
   Remember the version of the corrupt Gateway.
   The Gateway proceeded by the red logo, is the correct one. Normally, this one will have the highest version number. So in this example, Gateway 2.05.0000 is the corrupt one.
   
2. Look-up the corresponding ProductIdGUID and RandomGUID (see overview at the end of this article)
   For example: for Gateway 2.05.0000 the ProductIdGUID is {1F528EEC-620E-461E-87DF-3E54CCE2090E} and the RandomGUID =CEE825F1E026E16478FDE345CC2E90E0.

2. Stop services

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

3. Edit the Windows Registry

1. Go to Start > Regedit > Run as administrator.
2. Copy-paste the following code in the address field and hit ENTER:
   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\
3. Do a search (CTRL + F) for Gateway.
   • If a hit for ‘Gateway’ is found in that address, go to the next step.
   • If a hit for ‘Gateway’ is found in that address, go to step 5.
4. Verify that the found hit is a Buildsoft Gateway key related to the version you want to remove.
   • Condition 1: the entry must mention “Buildsoft” as “Contact & Publisher” (red arrows).
   • Condition 2: the ProductIdGUID (green arrow) corresponds to the version you want to remove.
     

   If BOTH  conditions are met: click on the key (where the green arrow is) with the right mouse button and choose ‘Remove’.

5. Copy-paste the following code in the address field and hit ENTER:
   HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\
6. Repeat STEPS 3-4.
7. Copy-paste the following code in the address field and hit ENTER:
   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\
8. Repeat STEPS 3-4
9. Copy-paste the following code in the address field and hit ENTER:
   HKEY_CLASSES_ROOT\Installer\Products\
10. Verify in Programs and Features, if the corrupt Gateway is completely removed from the list.
11. Restart the computer. Our software should work fine now.

1. Stop services

1. Go to Task Manager tab ‘Services’
2. Stop the Gateway and 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 filesBuildSoftGateway.
   If you’re using Diamonds/PowerConnect/ BIM Expert 2023r01 or older, you’ll have to look in C:program files (x86)BuildSoftGateway.

4. Remove the old installer from the disk

1. Open Windows Explorer. Copy-paste C:WindowsInstaller 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.

5. Edit the Windows Registry

1. Go to Start > Regedit > Run as administrator.
2. Copy-paste the following code in the address field and hit ENTER:
   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\
3. Do a search (CTRL + F) for Gateway.
   • If a hit for ‘Gateway’ is found in that address, go to the next step.
   • If a hit for ‘Gateway’ is found in that address, go to step 5.
4. Verify that the found hit is a Buildsoft Gateway key related to the version you want to remove.
   • Condition 1: the entry must mention “Buildsoft” as “Contact & Publisher” (red arrows).
   • Condition 2: the ProductIdGUID (green arrow) corresponds to the version you want to remove.
     

   If BOTH  conditions are met: click on the key (where the green arrow is) with the right mouse button and choose ‘Remove’.

5. Repeat until you nolonger find any hits for ‘Gateway’ in this address.
6. Copy-paste the following code in the address field and hit ENTER:
   HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\
7. Repeat STEPS 3-4-5.
8. Copy-paste the following code in the address field and hit ENTER:
   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\
9. Repeat STEPS 3-4-5.
10. Copy-paste the following code in the address field and hit ENTER:
    HKEY_CLASSES_ROOT\Installer\Products\
11. Restart the computer.
12. Verify in Programs and Features, if Gateway is completely removed from the list.
13. Reinstall Gateway.