Do not defrag, unless your haddrive(s) are from like what, the year 2000?
Or, has not been formatted for 6+ years.
Else, defragment are completely useless and has a big risk of decreasing the life length of your harddrive.
What it does is;
If you delete a file on your computer (in Windows), it doesn't disappear, Windows just stops "identifying" it.
Your harddrive doesn't really increase in space, it just says so.
Because when you save a file at the same spot, it overwrites the old file.
If you don't save a file there, well then in Windows, theres a hole there.
I'll try to show this "graphically".
F = File
? = Hole
F?F?F?FFF?F?FF?F?FFF?FF?F?FFF?F
Defragment tries to move these into order.
FFFFFF???FFFFFFFFF?????????
This was usefull long ago, but the harddrives we have today takes no harm of these holes, it goes as fast as it does normally.
Also, about peoples pings.
If you were running XP with a steady ping, and now you're on Windows 7 with a jumping ping.
A service installed, called multimedia something, sends something every 5-10seconds in 10kb/s standard.
Disabling it wouldn't be the best way to go, so someone found a registry hack to do this.
The value = 10, by a hex code. If we change it to FFFFFFF, it would mean Disabled (0xffffff).
As I'm nice today, you people who are just lazy or never used regedit before, I've made a .reg file for you (If you're running Windows 7).
1.
Download.
2. Double click.
3. Hit yes.
4. Reboot (so the service restarts).
And no, it's not a virus. Just open the .reg file in notepad and you'll see it's a simple export.