Well instead of buying a "New" Computer I would probably perfer you to UPDATE
Your Windows OS, because not saying XP is bad, but Windows 7s are pretty good too.
If you can't afford the Window 7 Ultimate( I think that's the best one), just get Home Premium, they are all same Window 7 but with some differences.
Home Premiums are in the 110 Dollars (About)
Ultimates are in the 180Dollars (About)
If you update your computer, the WHOLE data will be deleted, so
be sure to save all the backups you need for the future.
Computers sometimes gets error because of virus and some other shits out there.
Lowest Requirements are:Intel CPU: Pentium 4 1.6GHz
AMD CPU: Athlon XP 1600+
Nvidia GPU: GeForce 4 MX 420 (Site says MX440, but MX420 can run it)
AMD GPU: Radeon HD 3200
You should have AT LEAST 500MB of RAM, no less
The lowest OS that can handle Minecraft is
Windows XP 32 Bit
The Version of your DirectX should be 9
Your HDD, or Hard-Disk-Drive should have at least 1GB
The Recommended Requirements are:Intel CPU: Pentium 4 3.0GHz
AMD CPU: Athlon XP 2600+
Nvidia GPU: GeForce 8600 GS
AMD GPU: Radeon HD 6320
Your RAM requirement is 1GB
The lowest OS requirement is the same: Windows XP 32 Bit
Your direct X versions should be 9
The HDD, or Hard-Disk-Drive should be at least 1GB
This information was recorded on the website called:
http://www.game-debate.com/games/index. ... =MinecraftI did not record myself Credits to the site aboveI don't know if this video will work for you but worked for all my friends around me.
http://www.youtube.com/watch?feature=iv ... Gr91oR_QEoThis video might be a little bit confusing, but just follow it up slowly
I am not a "Computer Genius", but a Great Minecraft Fan :]
If I am wrong, please correct me I tried my best to help him out :[ (Plus I'm only 13)