When I boot I get an error message that says partitions not found

[GeekerConvict]

I used disk sanitizer not understanding completely what it would do,can i recover my hard drive or reformat and repartition it?

 

[almartin]

boot to the command prompt and format your drive before windows loads you can also try Mini-tool Partition wizard which is free http://www.partitionwizard.com/nd and it may be able to restore your partition.