XenDesktop 7.6: Unable to install VDA with Error "Product with upgrade code {C6F601FC-380A-4399-B1E9-7B881F70D1D2} is not installed"

XenDesktop 7.6: Unable to install VDA with Error "Product with upgrade code {C6F601FC-380A-4399-B1E9-7B881F70D1D2} is not installed"

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Article ID: CTX213810

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Updated On:

Description

Error "Product with upgrade code {C6F601FC-380A-4399-B1E9-7B881F70D1D2} is not installed" while running installer to install the VDA.

Environment

Caution! Using Registry Editor incorrectly can cause serious problems that might require you to reinstall your operating system. Citrix cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk. Be sure to back up the registry before you edit it.

Resolution

  1. Run the command: C:\Windows\Microsoft.NET\Framework64\v2.0.50727\Ldr64.exe set64 
  2. Ensured the values are changed to 1
    • Key: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework\ 
    • Value: Enable64Bit  Data: set to 1 
    • Type REG_DWORD

Problem Cause

.Netframework value was 0

Key : HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework\ 

Value: Enable64Bit 

Data: set to 1 

Type REG_DWORD