problem installing windows 7

[regan2007200]

system:dell studio 1558,windows 7ultmate,500gb hd
problem:cannot install windows all my partitions are in dynamic and im not having any os.
2.having partitions:7(5 main partition,,10gb unallocated 1 drive showing 2 times).
3.unable to format any drive,cannot install anywhere.
4.i am having an important drive which i cannot format.
5.is there any way to install windows 7 on dynamic drive.
6.any way to convert dynamic disk to bootable disk.
plz help thanks .
.urgent

 

[bigg123]

When you reinstall Windows 7 select custom. Delete every partition on the disk. select that unallocated space for install.

 

[regan2007200]

unallocated space is 10 gb
2.im not getting the option to delete any partition

 

[bigmck]

Go to this site and get Partition Wizard free. It will take your partitions out. You can then do the custom install. BEST FREE Partition Manager Software for Windows supports all 32-bit & 64 bit Windows No-server OS.

 

[gregrocker]

Convert to Basic Disk using the Win7 DVD Command Line: Change a dynamic disk back to a basic disk: Storage Services; Local File Systems