Trick to format MMC or Flashdisk which it hard to formatted

We often find memory card (MMC) or a flashdisk hard opened even not detected in windows explorer either from a virus, too old or unused so forth. even if formatted by right-clicking in windows explorer then the format was still not able complite. how to format it is

• open control panel
• click administrtive tools
• click computer management
• click storage
• click disk management
• search flashdisk name or who want formatted MMC right click then format ... wait until the process is complete ...

this way can be successful depending on the level of damage to the MMC or flashdisc but if damage due to viruses tested 100%