From last two days my systems speed has decereased too much , it is taking 15-20 seconds to open a file.

Thanks

Machine slow-downs can usually be attributed to

1. lack of sufficient hard disk free space
2. software which "tracks" file system modifications or similar (such as Indexing in XP)
3. MalWare

Have you recently installed any new software?

Have you recently made any changes to your Virtual Memory settings?

Try performing a disk Clean-Up. In My Computer or Windows Explorer, right click on the drive and choose Properties. In the Tools tab run Disk Clean-Up. (I'm going by memory here, I no longer have a 98 machine set up.)

Even better than the above; A good (FREEWARE) "cleaner" for removing junk from your system is CCleaner.

http://www.ccleaner.com/download/
(Click on Download from FileHippo......, in the PayPal box)

http://www.majorgeeks.com/download4191.html


Once you download and install it, open the program then click on (on the left hand side) OPTIONS, then COOKIES. Any cookies you want to save (trusted sites, places you have usernames/passwords), highlight them in the left column, then (using the directional arrows between the panes), move them to the right hand column under "Cookies to keep".

Still under Options, click on Advanced. Remove the check mark from the box for "Only delete files in Windows Temp folders older than 48 hours"

Then click on Cleaner (on the top left). When that window opens, click on Run Cleaner (bottom right of the window.)

When it finishes, close CCleaner, and restart your machine. (Some files will not be deleted until a restart is performed.)

If you run any AdWare or MalWare programs, do a thorough scan with them as well as your Anti-Virus program.

Here are some of the "top" programs many use;

These are the programs I recommend. They are among some of the "top" (FREE) programs many use;


Primary Protection
===================
Comodo Firewall
http://www.personalfirewall.comodo.com/lic...gistration.html

Avast Anti-Virus
http://www.avast.com/eng/down_home.html


SpyWare/MalWare Tools
======================
Cool_Web Shredder
http://us.trendmicro.com/us/products/perso...dder/index.html

SpyWareBlaster
http://www.download.com/SpywareBlaster/300...cdlpid=10196637

BOClean (Comodo Anti-Malware product)
http://www.comodo.com/boclean/boclean.html

SpyBot Search & Destroy
http://www.safer-networking.org/en/mirrors/index.html

Ad-Aware
http://www.lavasoftusa.com/products/ad_aware_free.php
(I've read that the latest version of Ad-Aware can cause problems though.)

CCleaner
http://www.ccleaner.com/download/