I solved the file not found issue by coping all the folders under disk2databasestageComponents to disk1databasestageComponents.
After restarting the installation it went like a charm and without any issues.
Or Maybe the error will be appear like this :
The same : ou should extract each of them and place win32_11gR2_database_2of2 content into win32_11gR2_database_1of2 folder before running installer.
Enjoy
Thank You
Osama Mustafa
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