Download a msvcp 140.dll file again. Follow these steps: 1. After unzipping, copy the file directly to the system directory: 1, Windows95/98/Me system, and copy it to the C:\Windows\System directory. 2.WindowsNT/2000 system, copy it to the directory C:\WINNT\System32. 3, WindowsXP/WIN7/Vista system, copy to the directory C:\Windows\System32. 4. If your system is 64-bit, please copy the file to the directory C:\Windows\SysWOW64. Second, open "Start-Run-Enter regsvr32msvcp 140.dll" and press enter to solve. Upload and provide download connection, which can be downloaded as needed. Msvcp class files are all part of VC++ runtime. Version number 140 means VC++20 15 file. If you lose this, install VC++20 15 to solve it.