A contraction stress test (CST) is performed near the end of pregnancy to determine how well the fetus will cope with the contractions of childbirth. The aim is to induce contractions and monitor the fetus to check for heart rate abnormalities using a cardiotocograph.
If your USB drive is not being recognized by Windows, or is not formatting properly, there may be problems with either Windows or the USB drive itself. If the problem is on Windows' end, you can usually solve it by reinstalling the USB drivers.. Click. OK to start formatting the drive. This may take a while, but if the format is successful, the drive should appear in Windows. If the format process doesn't work, try the next section. 1  Formatting will delete all of the data on the USB drive.
#3 must try recovery software. Freeware to Restore Lost Files from External Hard Drive. The first thing you have to do when not formatted error occurs on your external hard drive is to perform data recovery with reliable data recovery software. Then format the external hard drive.The data recovery software is also available for RAW memory card data recovery.e usually call such kind of data loss problem not formatted error. Not formatted error problem can not only occurs on external hard drive, but also it can occurs on almost all storage devices like hard disk drive, USB flash drive, pen drive, floppy disk, memory card and memory stick and so on.