Bro, ayaw kasipyat ug partition! If your not comfortable or adept with partitioning please patabang ug migo nimo na kama-o kay na, wagtang jud na tanang files nimo

Ubuntu as with other Linuxes, cannot install natively in FAT/FAT32/NTFS File systems. You have to create a separate partition for them. To make it easier for you, here's my advise

Back-up all ur files and consider ur hard disk ask fresh ba, pra papas tanan

Then re-install Windows bro, but during install i-delete tanang partition, then create the partition size you want for Windows
After Windows installation, you can then boot from the Ubuntu CD... During the install process you'll be asked where to install it... There will be 3 options, Select the Manual Partitioning
Then you will see the FAT32/NTFS Partition plus an unpartitioned space. Select the unpartitioned space bro then Create New partition. change mountpoint to / . Decrease the partition size slightly para naay free space mga 1 or 2GB depende nimo, select type of Partition, i suggest ReiserFS or XFS kung nahan kag journaling na OS, other wise pwede ra EXT2 or EXT3. Then Select the Remaining Unpartitioned space, Create New, change the type to SWAP Partition. Click dayon apply, then ok na ka

Mo-proceed nana xa to copying and installing the OS
The other Option for installing bro without wiping out ur HDD would be to resize the Windows Partition 1st to make room for the Linux Filesystem and Swap partitions using PartitionMagic or using the Ubuntu LiveCD Program named GParted.
Kung napa moy la-in solutions dira mga bro, please share it with us pod
Welcome to the world of Opensource bro Bongbong!
