When installing software or games, the default path is usually drive C. If the installation path is not changed, it will be installed to drive C. System operation will constantly produce residual files, malicious rogue software or viruses.
Suggestion: Scan the whole system with anti-virus software and 360 security guards to ensure that there is no virus or Trojan horse in the system. With cclean, a 360 security guard, open My Documents to see if there are a lot of files stored in it. If there are, transfer them to other drive letters. Uninstall large-scale software or games installed on drive C and reinstall them to other drive letters.
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 boot hard disk. Most of the files on disk C are mainly composed of documents and system folders such as settings, windows and program files. Program Files folder is generally the default location for installing software, but it is also the location of viruses, so drive C should be strictly protected.