SanDisk Cruzer 4GB Format

I can not format or quick format my flash drive. If I try to open it Windows says it can’t be opened and aks if I want to format. If I say yes, Windows tells me it can’t complete the format. In Disk Manager it says that the drive has a RAW format and Properties says that it has 0 bytes used and 0 bytes free. I can’t format or partition through Disk Manager.