In my PC, google desktop has found over 300.000 files. It's indexing in 4days and working well now.
If Opera System error, i'll starting setup news OS, how to backup an data image of Google Desktop and restore it?
How can I back up my personal search index?
Your Google Desktop personal search index is located at C:\Documents and Settings\%USERNAME%\Local Settings\Application Data\Google\Google Desktop.
To back up your index, first turn off Google Desktop (right-click the icon in your system tray and choose "Exit."). Then copy this entire folder to your usual backup location (most likely a CD, an external drive, or something similar).
To restore your index using this backup file, turn Google Desktop off and replace the C:\Documents and Settings\%USERNAME%\Local Settings\Application Data\Google\Google Desktop folder with the one you saved. Then turn Google Desktop back on by going to "Start" > "Programs" > "Google Desktop" > "Google Desktop."