आपकी हार्ड ड्राइव का बैकअप करें: आपके लैपटॉप के निर्माता के द्वारा आपको प्रदान की हुई रिस्टोरेशन की विधि का पता करें: ऑपरेटिंग सिस्टम डिस्क को आपकी सीडी/डीवीडी (CD/DVD) ड्राइव में लगाएँ: सीडी के ऑटोमेटिकली काम करने का इंतजार करें: इंस्टॉलेशन पूरा होने का इंतजार करें:

I'm interested in that, but I only have a few mins. Can you give me at most the first 500 characters of a detailed explanation in English about that?
Reformatting your laptop will cause you to lose all of your information so it is recommended that you back up your hard drive on an external hard drive, CDs, or DVDs if you wish to keep it. If you received a set of installation CDs with your machine, then use this. If you did not, your computer may have a restore partition set up, which means you will need to employ a different method. It normally auto-runs and will open to a menu, or options page. Select the option for installing a fresh copy o