Probably the most common question, how to speed up my system.
I've been getting really annoyed about my Laptop's speed - very slot start up, simple Java games lag like crazy after played for an hour (probably just because my video card isn't the best). Takes a few seconds to start up FireFox, and other things.
Currently I run Defraggler, CCleaner, Disk Clean Up, and my system is still laggy.
I've been asking myself if it is a good idea to just run a clean install. My only concern is that I wont be able reinstall office because I've used all 3 installs.
So, if clean install isnt the best solution - what tips do you all for speeding up a laptop?
System Specs:

I've been getting really annoyed about my Laptop's speed - very slot start up, simple Java games lag like crazy after played for an hour (probably just because my video card isn't the best). Takes a few seconds to start up FireFox, and other things.
Currently I run Defraggler, CCleaner, Disk Clean Up, and my system is still laggy.
I've been asking myself if it is a good idea to just run a clean install. My only concern is that I wont be able reinstall office because I've used all 3 installs.
So, if clean install isnt the best solution - what tips do you all for speeding up a laptop?
System Specs:

My Computer
- Computer Manufacturer/Model Number
- Dell XPS 8100
- OS
- Windows 7 Home Premium 64-bit
- CPU
- Intel Core i7 860 @ 2.80GHz
- Motherboard
- Dell Inc. 0T568R
- Memory
- 8.0GB Dual-Channel DDR3 @ 529MHz 4-7-7-20
- Graphics Card(s)
- ATI Radeon HD 5770
- Sound Card
- Realtek High Definition Audio
- Monitor(s) Displays
- 3 Widescreen HD Monitors
- Screen Resolution
- 1600x800
- Hard Drives
- 1000GB Seagate ST31000528AS (SCSI)
1500GB Western Digital WDC WD1001FALS-00J7B1 (SCSI)
- PSU
- 750W
- Case
- -
- Cooling
- Fans
- Keyboard
- Logitech Illuminated Keyboard
- Mouse
- Logitech MX
- Internet Speed
- 6MBS-15MBS Upload
- Other Info
- Laptop (Dell Studio 1537)
Intel Mobile Core 2 Duo T6400 @ 2.00GHz
4.0GB Dual-Channel DDR2