1. Open Steam
2. Ctrl, Alt, Delete on your keyboard
3. press your Home button plus your Pause button to open up your properties.
6. Look and find your total RAM of Memory. (For me it was 2 GB, and it most likely may be different from yours)
7. Calculate half of your KB memory by using this equation: GBx1000x1000 than take that number you just calculated and divide by 2. (For me, it’s 2x1000x1000= 2,000,000 than divided by 2 to get 1,000,000)
8. Go to your Steam Library and go to TF2