Barium swallow is a dedicated test of the pharynx, oesophagus, and proximal stomach, and may be performed as a single or double contrast study.arium swallow is a dedicated test of the pharynx, oesophagus, and proximal stomach, and may be performed as a single or double contrast study.
up vote 9 down vote accepted. In Windows Azure Virtual Machine for Windows you can find drive C and D. Drive C is the boot OS disk and the size is actually the size of your VHD you have either uploaded or configured from the Gallery.
1. Back up and save your files. Formatting the C drive will erase all files, programs, and information saved on the C drive, so you may want to back up any files you want saved. 1  Save your files to an external hard drive or disc, or save your files to another folder on the network, if applicable.