D.L.
Hi,
I work in IT, have for over 20 years. First, I would consider upgrading to a new laptop. 5-6 years is pretty much end of life for any laptop. They are too old to run most current software versions.
Next, you didn't say what version of Outlook you're running, anything newer than Outlook 2003 will be painfully slow on a laptop that is older than 3 years old.
Next, look at the memory on your laptop, if it's 1gb or less, you need to increase to 2gb or more...here, again, look at a laptop upgrade. Memory is really cheap these days so is a great option if a new laptop isn't an option.
The answer to your specific question though, is you can export all your mailbox data, or data in various folders. You do NOT want to archive to a .PST file unless you forever want that data in a file outside your Outlook mailbox. The instructions for exporting Outlook data to a file and then to import it back later, or to another mail client can be found on this link: http://office.microsoft.com/en-us/outlook-help/import-and...
Other things to consider:
Ensure you have virus scanning software on your laptop and keep it current.
Cookies, and other settings related to IE and web browsing won't have any impact on your email speed. Email uses memory and processor...both of which are hardware based.
Perform a hard drive defrag...you can find that by Right clicking on the "My Computer" icon and select the "Manage" menu item. Click on the "Disk Defragmenter" option listed under "Storage" and click the analyze or defragment buttons as you feel is appropriate. A fragmented hard drive, like malware, will slow down overall processing.
Viruses and malware CAN impact the overall processing speed of your computer, not just outlook. Try one of these sites to do a free scan/cleaning of your laptop:
http://housecall.trendmicro.com/
http://security.symantec.com/sscv6/WelcomePage.asp
http://home.mcafee.com/store/Product.aspx?productid=mss
I hope those suggestions help.
D.