Hello Ashish,
Thank you for your message.
Of course, you can backup your address book manually as described in
this tutorial or simply copy the existing backup files from the following folder:
C:\Users\user_name\AppData\Roaming\Remote Utilities Files\backups\. Please note that automatic daily backups are enabled by default and include your General address books and any custom address books.
After you've reinstalled your Windows OS and Viewer, you can restore your address book from the pre-saved backup file following
this tutorial.
Hope that helps.
