Hi I am Njock. I am using windows 7 in my laptop. I want to install it again, but don't want to lose data. Can I install it again with keeping all the data remains in the same computer.

Lots of people feel that regular backups is something for wimps. Real people do not need to back up their irreplaceable files. They often learn a very harsh lesson when something goes wrong with their PC.

Iron rule of data storeage: Important files must be stored on two independent media at all times.

If you like big risks then you can re-install Windows without bothering about backups. It will probably work. Maybe it won't. It's your choice. If you do back up your files beforehand, remember to perform a few spot checks of the backup on a different machine. How else would you know that the backup was successful?

Hello,

An in-place upgrade may meet your requirement:

https://support.microsoft.com/en-us/kb/2255099

After the upgrade, you dont need to reinstall any application and all the data are not affected.

Thanks,