There is a registered problem with the game Test Drive Unlimited. When the user starts it, it freezes and after some time it fails with an error message. You have to follow the steps given here to resolve this issue.

1. Disable background apps

2. Solve registration problems

3. Modify NVDIA Drive Files

4. Modify registry keys

5. Update your drivers

6. Clean system junk

Disable background apps

Non-vital apps running in the background can cause Test Drive Unlimited to crash suddenly. Close all applications that are running in the background. Some of them might be using a lot of memory and thus causing the problem.

Solve registration problems

To fix the problem, you must modify the registry using a Registry Cleaner program that is included with the System Utilities software.

Modify NVDIA drive files

For NVDIA users, modify the NVDIA driver files to fix Test Drive Unlimited crash. The instructions are as follows:

1. Open My Computer.

2. Double click to open the directory below:

C:NVIDIADisplayDriver\International

3. Copy the nvlddmkm.sys file to your desktop temporarily.

4. Double click to open the directory below:

C:WindowsSystem32Drivers

5. Rename the nvlddmkm.sys file as nvlddmkm.sys.old

6. Click the Start button.

7. Type Command Prompt in the search box.

8. Right click and select Run as administrator.

9. Type the following commands one by one in the command prompt window:

CD..

expand.exe nvlddmkm.sy_nvlddmkm.sys

10. Cut the nvlddmkm.sys file from your desktop to the following location:

C:WindowsSystem32Drivers

11. After completion, restart your computer.

Modify registry keys

To stop Test Drive Unlimited from crashing, modify your registry as shown below:

1.Click Start.

2. Type RegEdit and press ENTER.

3. Double-click to expand the following registry location:

HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlGraphicsDrivers

4.Click Edit | New, then DWORD (32-bit) value.

5. Name the DWORD TDRLevel.

6. Enter 0 as its value.

7. Press ENTER.

Update your drivers

Updating the drivers to the latest version may fix the game crash. You can get the latest version from the website of the manufacturer in question.

Clean system junk

Too many files stored on your computer can cause Test Drive Unlimited to crash. Deleting these junk files is essential. You must have a system utility software that includes the System Cleaner function.

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