My laptop had been working fine when i booted it. suddenly it became slow.?

Some hidden processes might be going on your computer.

*Press cntrl+alt+del and see the processes tab for those utilizing maximum CPU and memory if these processes are unfamiliar to u or unimportant then stop them.

* Next install a good antivirus if u don't have to catch hold such processes in future.

*try using cc cleaner software to control the start up programs.

Possibly a background service is downloading updates

or you have a cpu intensive program running in the background

such as a virus scanner. Have you got any anti-malware software?

might be a good idea to check you don't have something malicious hogging resources

Could just need a disk defrag, in system tools the program is. OR

You might be running to much at one time, taking up all the processing power and ram.

Id start with a well needed disk defragmentation.

If you recently installed anti virus for example it could be that as a large amount of the cpu's power is used to run anti-virus or the opposite of that you may have recently downloaded something that contains a virus. They would be the most obvious reasons.

Just clear the Temp files in all folder

Follow the Step..

Start->Run->Box open

1)Type "Temp" Delete all the Files and close

2)Type "%temp%" Delete all the files and close

3)Type "Recent" Delete all the files and close

4)Type "Prefetch" Delete all the files and close.

Now You can feel your system Access speed.

1, There should be one Anti-virus, of good quality.

2. remove temporary files, regularly.

3. If necessary, Restore to a good working instant.

the subject of freezing makes a hundred% specific which you like greater RAM. upload yet another DDR-RAM of 128 or 256 MB. If u r making plans to alter your laptop after sometime, then upload 128.