After the system was reinstalled, a lot of software was installed, including eclipse. However, an error occurred when opening eclipse after installation  

Click OK to show the following:

 
I found the reason on the Internet, because I generated three files java.exe, javaw.exe and javaws.exe in the file C: [windows] system32 when I installed JDK; As shown in the figure:

 
Delete the three marked exe files. Be careful not to delete them wrong. Restart eclipse again, and you can run it successfully!

Hope to help you!!!