Problem 1: Temporary files have built up on your hard disk
Some tasks might require you to leave the system working for several days and this might cause temporary files to build up on your hard disk. This might be a reason why your computer is slowing down and is taking some time to boot up as these type of files tend to be memory consuming.
How to delete Temporary Files?
1. Open “My Computer” and select your local drive (it is usually labeled as :\C)
2. Select the “Windows” folder and locate the folder labeled “Temp”
3. Use your mouse to right-click on the folder (not the contents) and in the “View” options, choose “Details”
4. Select all the files that are older than the current date and press the delete key.
5. When done, go to the Recycle Bin on your desktop and choose “Empty Recycle Bin”
You can also choose to delete the Temporary Internet Files that have accumulated on your system
1. Go to your “Start” button and open “Control Panel”
2. Select “Internet Options” and in the section labeled “Temporary Internet Files” press “Delete Cookies” and “Delete Files” options.
3. You can also delete your history by clicking the option “Clear History”
4. When done, press “Apply” and “OK”
When you finish removing the Temporary Files, reboot your computer.
Problem 2: Your computer has been infected
If your computer has been infected by a virus, a malware, a worm or a Trojan, it might have cause the slow down of your computer system and even freeze several tasks at hand. Hence, you should run a virus scan and remove all the infected files found on your system.
Defragmenting your hard disk
You can also choose to defragment your hard disk to gather some dispersed spaces that can be used by the computer again.
1. Go to your “Start” menu and list all programs
2. In the “Accessories” option, select “System Tools”
3. Choose “Disk Defragmenter” from the list
4. To start the process, click the “Defragment” button.
finally go to c drive -> windows -> prefetch
prefetch are the junk files.....it is recommended to clear al d files present in it atleast once in a month