Install problems continue...blame it on Windows 7

Correction to one of my original post. JAVA is not functionally on my home computer. I have JRE (JAVA netbeans) it seems nice to prettying up my code with all the spacing, colors, and by pointing out potential errors before I attempt to compile the code. I am striping all JAVA off my machine and re-re-installing JAVA (JDK) I hope it takes or else I will have to go and buy a CHEAP laptop.

Side Note: every time I turn on my home PC windows to make important and non-important upgrades. If Window 7 is always pushing updates/upgrades to Windows 7 how rushed and unstable with Windows 8 be???