This may help...
If you have a 32-bit processor, you can't install the 64-bit version of Windows. However, with a 64-bit CPU, you CAN install a 32-bit version OS. That limits your computer to utilize only the 32-bit versions of SW as well as a memory allowance of only 4GB. Keep in mind that Windows can use over 1GB of that memory leaving you with 3GB or less of usable memory.
Think of your computer as a brain. Memory, or RAM, is the part of the system that the thinking part of the computer (your CPU) uses to grab useful data for computation. So if you, yourself, calculate 2 * 3 in your head, that part of your brain that visualizes the number two and the number three, is stored in your memory, drawn into your thinking/computing part of your brain, and that part calculates the answer. The answer is derived in the CPU part of your brain as the number 6 (hopefully ... ), and the CPU part allows your brain to put that number back into memory for use later. Computers are similar in function. CPU calculates the data, memory stores the temporary data. Opening up your system to a 64-bit OS allows your computer to do more, faster. It is able to transfer your data faster. It also allows you to utilize more memory. I run 16GB at work, and 32GB at home. With a 32-bit system, you can insert more than 4GB, but it will only recognize 4GB.
I hope this is making sense. Stick with me, I am getting to the point.
It also appears your system may have on-board video, or your graphics card is at least robbing your RAM. I am gathering this theory from the picture you posted above. It says 2.99GB usable. My computer shows 16GB. Nothing after. I have a 2GB graphics card. The card has 2GB on the card itself. It is possible that a PCI graphics card can use your RAM and segregate a gig or more to itself that Windows or the programs installed in it can't access, ever.
So if Windows uses, let's just say, 1GB, and your graphics card is using 1GB (round numbers to make it easier), that leaves 2GB for the Voxelizer program. If the program exceeds the 2GB limit, the program can and will crash. No warnings, just boom, gone.
How would I know? Just yesterday, I had to install the 64-bit Voxelizer in order to generate gcodes for a very large print. My design covers the entire bed - top to bottom, left to right, and 5 inches above the bed - and takes 4 days and 2 hours to print. Took Voxelizer about 5 minutes to crash to the desktop (similar to what you are describing). After two attempts, I installed the 64-bit version. After 20 minutes, the program was able to generate the code. The 32-bit version ran out of memory to use. The 64-bit version handled it like a champ.
So what does this mean for you? And what do I recommend in your situation?
- Check your motherboard's manufacturer to see what your installed RAM limit is. Usually 4GB, 8GB, 16GB, or 32GB. While you check on this, also check for the Qualified Product List (your manufacturer's supported RAM models). Buy from this list. It will save yourself a headache if you run into issues and have to contact the manufacturer, believe me.
- If 4GB is your MoBo's max, you will need to upgrade your MoBo. Stop here, because the following lays out your process to upgrade your computer to accept the 64-bit versions and the larger memory requirements. If your MoBo's limit is 4GB, the following will not help you, and unfortunately, Voxelizer will continue to crash until you update your system by upgrading parts or buying a new PC from the store. Whichever you are more comfortable with.
- If your RAM max is NOT 4GB, continue on.
- You will need to buy (if 64-bit wasn't included in your copy) Windows 10 from a local retailer or MS themselves. They should have a download link for their OS now. I have my copy on a USB flash drive downloaded from them during the free upgrade period from 7 to 10.
- Backup your files you wish to keep to an external drive. The following steps can, and likely will, delete your files on your computer. So this step is very important. Once this is done, move on to step 6.
- Reformat your HD or upgrade your OS with the 64-bit version of Win 10.
- Upgrade your RAM to at least 8GB or higher if it is supported by your Motherboard as determined in step 1.
- Boot up your computer and install 64-bit Voxelizer.
This should help you to run the program without the program crashing. I'm fairly positive that your low memory is your limiting factor here based on my experience.
To verify this quickly, put a 64-bit system with at least 8GB on the scanner, install Voxelizer and test it out. If it runs, scans and completes the process, my theory is accurate and you should proceed to upgrade your PC. Don't forget to backup your data before you reformat or upgrade your OS! I can't stress this enough. You can wipe out ALL of your files fairly easily when you update your OS. If you aren't confident enough in this area of expertise, contract an IT wiz to help you.
Keep us posted here with your findings. I hope this helps. Not a cheap or easy fix, but one that is necessary, unfortunately.