magento - install live site on local system

Steps you must take care while installing live site on local server:

1) Download all files and folders to local system.

2) Download all DB and install it on local system.

3) Open DB and search for core_config_data, change the live url to the local one.

4) Change the document root in pear.ini (downloader\pearlib\pear.ini), without it you cannot able to upgrade your local magento with latest updates.
Note: you must count the number of words you are placing in it and replace it, for example its written there as S:42 and your word count is 52 then replace 42 with 52.

Hope this help