I just want to know how to clean up a hard drive that there will no longer be any traceable info or data that can be recovered by any data recovery software.

I need a laptop to surf the internet , play small games (I dont play many games on my computer, I have a xbox 360 to play games on.) I will use microsoft word for doing my homework. Here are the specs =.

BASEAMD® Athlon™ 64 X2 Mobile Technology TK53

OPERATING SYSTEMGenuine Windows Vista® Home Premium – English

LCD15.4" Wide Screen WXGA (1280 x 800) Display with TrueLife

MEMORY2048MB 533MHz Dual Channel DDR2 SDRAM [2×1024]

HARD DRIVE160GB (5400RPM) SATA Hard Drive

GRAPHICS CARD256MB ATI ® Radeon® Xpress 1150 HyperMemory

OPTICAL DRIVEFixed Internal 8X DVD+/-RW Drive including Software

WIRELESS CONNECTIVITYDell™ Wireless 1505 Wireless-N Mini-Card – Europe

MICROSOFT SOFTWAREMicrosoft® Works 8.0 – English

KEYBOARDInternal Keyboard – UK/Irish (QWERTY)

SYSTEM MEDIAResource DVD – (Diagnostics & Drivers)

Go!

I have a SeaGate Barracuda 7200.11 ST3500620AS 500gb hard drive that is not working. It is not detected in bios anymore. Ok, I need to send it for repair to HP, but it contains Windows 7 7600 Build 16385 RTM OS and other programs, music, and mp3? Will I get in trouble?
Sorry, if I placed this in the wrong category.

How do I increase windows xp boot-up time. I have cleaned the programs from the start-up list. only comodo firewall and nvidia driver components are there.
Cleaned my PC from anti-virus, spyware and other malware.
Cleaned my registry.
Defragmented the registry and the hard drives.
Disabled unneeded devices.
But still my boot-up time is 1 minute. From the moment of the POST message to the usable desktop.
PC specs:
Intel p4 ht 3.20GHz.
512MB RAM
Nvidia Ge force 6600.
D945GNT motherboard.
160GB hard drive space.
Already used Advanced windows care and disabled the floppy drive seeking.

about every 3-6 months i like to wipe my computer clean and reinstall windows, however afterwards there is a lot of programs to put back on and settings to apply. is there a way to make a mirror image of the hard drive right after everything is set up the way i like so i can spend less time installing programs and what not. PLEASE DO NOT BRING UP SYSTEM RESTORE, ITS A JOKE.