Your hard drive shouldn't slow down if you've reformatted it lots of times - from what you've said it might be that the drive itself is failing. Have a look in the BIOS and see if you can check its SMART status.
Look up hard drive manufacturer and see if they have a disk manager program download as this will have utilities for wiping and reformatting it.after installing diffrent os systems and trying dirrrent programms imy pc is slow and really need to wipe my hard drive clean it there any good programms out there i can use that is quick and easy to use.
Look up hard drive manufacturer and see if they have a disk manager program download as this will have utilities for wiping and reformatting it.
I assume he wants all traces of info removed.Why?!
Any OS you'll need to install these days (including windows and Linux) will, before the main install starts, give you an option to set up partitions on the disk. When you come to install your OS of choice simply delete all current partitions on the drive and create a new one to house your new OS.
Most Disk manager utilities have a program to wipe clean the hard drive and do a low level format.