Precautions:
Drive C refers to one of the main partitions of computer hard disk, which is generally used for storing or installing systems. For a single operating system installed on the local hard disk, it is the default local system startup disk.
Most of the files on disk C are mainly composed of system folders such as DocumentsandSettings, Windows and ProgramFiles. ProgramFiles folder is generally the default location for installing software, and drive C is also the main attack location for viruses. Therefore, drive C should be closely protected and backed up when necessary to avoid serious failures and irreparable losses.