Users using a 32-bit version of Windows have to make more memory available to Tekla Structures Learning by enabling the 3GB switch.  This is not needed for 64-bit version of Windows, because it handles memory in a different way.

Before enabling more memory, you need to check if your computer is running 32-bit Windows.  To do that, follow these steps:

1. Browse to https://support.microsoft.com/en-us/kb/827218  that will automatically detect whether your computer is running 32-bit or 64-bit version of Windows.
2. Scroll down to Automatic version detection results to see the version.

To enable the 3GB switch in 32-bit Windows, do one of the following:

• In Windows 7:

1. Click the Windows Start button.
2. Select All programs.
3. Select Accessories.
4. Right-click the Command Prompt icon and select Run as Administrator.
5. In the command prompt that opens, type the following command: bcdedit /set IncreaseUserVa 3072
6. Press Enter.
7. Restart the computer.

• In Windows 8:

1. Right-click the Windows Start button.
2. Select Command Prompt (Admin).
3. In the command prompt that opens, type the following command: bcdedit /set IncreaseUserVa 3072
4. Press Enter.
5. Restart the computer.

To disable the 3GB switch in 32-bit windows, do one of the following:

• In Windows 7:

1. Click the Windows Start button.
2. Select All programs.
3. Select Accessories.
4. Right-click the Command Prompt icon and select Run as Administrator.
5. In the command prompt that opens, type the command: bcdedit /deletevalue IncreaseUserVa
6. Press Enter.
7. Then restart the computer.

• In Windows 8:

1. Right-click the Windows Start button.
2. Select Command Prompt (Admin).
3. In the command prompt that opens, type the following command: bcdedit /deletevalue IncreaseUserVa
4. Press Enter.
5. Restart the computer.

See more information about 32-bit and 64-bit Windows from here.