If you are working on lot of files and folders and you need to reboot computer after any installation, its difficult to rebuild all the open windows after the reboot process. But Windows has an option to save the windows that you were working on and open them again on start up in windows.
1. Open any Explorer Window and click on Tools-> Folder Options (in XP) and Organize-> Folder and Search Option.
2. Under View tab, scroll down and check the box labelled “Restore previous folder windows on logon“.
3. Click OK and next time you restart your PC, all windows from previous logon will be opened.