Sometimes, when installing Lasernet v7 and above, the required component SQL Server Compact 4.0 SP1 x64 fails to install. This is due to one of the .NET configuration files becoming corrupt.

Microsoft provides a copy of the default machine.config file in order to resolve the issue by following these steps:

1. Navigate to C:\Windows\Microsoft.NET\Framework\v2.0.50727\CONFIG.

2. Rename ‘machine.config’ to ‘machine.config.bak’

3. Create a copy of ‘machine.config.default’ with the name ‘machine.config’.

x64-bit Machines

If the affected machine is x64-bit then follow these steps:

1. Navigate to C:\Windows\Microsoft.NET\Framework64\v2.0.50727\CONFIG.

2. Rename ‘machine.config’ to ‘machine.config.bak’.

3. Create a copy of ‘machine.config.default’ with the name ‘machine.config’.