dynamic disk to basic disk

[Andy]

Mistakenly converted a dynamic disk system to basic disk,
lose all data, anyway to get the data back from the
petition?

 

[shura]

Use any utility that can "undelete" partitions.
These utilities search boots at specific positions of hard disk.
Some of this utilities are:
http://www.drive-backup.com/home/personal/features.htm
or PowerQuest's PM

In many cases you can easy undelete the first partition manually.