Hello, I had a 1Tb drive in my portable pc with two partitions C and D. The C drive with 150Gb and the D drive with -850Gb. The pc had an shutdown unexpected, anda after reboot, the logical drive D disappear. That space is know unallocated. What I must do to retrieve the information in that logical drive without losing information. Best regards, Hugo Pinto

You will have to find and purchase a third party such as R-Drive to attempt to recover your data. Those utilities are not always successful. Windows 7 does not have any type of recovery utility. There are also firms that specialize in data recovery.Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

Hi, Thanks for posting in Microsoft TechNet Forum. Please understand the Data recovery issue is beyond our forums support boundary. In this situation, in order to protect your important files on this partition, we recommend that you contact data recovery professional for further help. Hope you can resolve this issue soon. Alex Zhao TechNet Subscriber Support in forum. If you have any feedback on our support, please contact tngfb@microsoft.comPlease remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.