How to install a driver..?

Steps:-

1. Hold windows Key and then press Pause button.System properties will open.
2. Go to hardware>Device Manager.
3. A list of drivers will open. Check in which drivers a yellow question mark or some yellow colored indication will be given. This indication means that either the driver is not their or it is outdated.
4. Search the name of that driver along with OS and computer name….Here its Lenovo r61.
5. A link for Lenovo drivers will open and then download that driver from the website.
6. Store the setup file with the name which is easy to recognise the driver. Like driver names are always of like a key….7ck232…..so replace it with some name like  video,audio,Ethernet. So that in future you can find them easily.
7. Store it in c:/>windows>system. You can store them anywhere but I store them in this location.
8. Now install the downloaded driver by double clicking on them and store the installed file in the -  c:\windows\..blabla….location.
9. Now again go to that particular driver in the device manager i.e                                                            driver_name> right-click > properties> driver> update driver
10. A window will pop up. Select – install from specific location.
11. Browse the installed file from the location chosen in step 7.
12. Sometimes for ex: Ethernet….you have a location…  C:\Drivers\Win\ETHERNET….where your installed file is present. But when you will browse this file in step 11 in the ETHERENT…many sub categories will be present like WINNT, WIN2000, WINXP. These files represent the OS. Each of these file have the Ethernet installed file. So as I am having XP, I will choose WINXP>IA32 (IA32 is my main installed file.    
13. Click Next....then done.