Windows can't read ext file systems.
Maybe you can use a program that can read it and transfer it to windows.
other then that you will have to boot up a live linux OS and transfer the files to a desk or usb with NTFS of FAT file systems.
You could also upload it to Google Drive if it doesn't take more spece then 15 gb
---------- Post added at 08:50 PM ---------- Previous post was at 08:47 PM ----------
btw. google drive does not allow files over 2 gb each.
i found this aplicaton:
Ext2Read | Free System Administration software downloads at SourceForge.net
I have never used it, but try it