nexus-->wrapper| OpenSCManager failed-denied access. (0x5)

The following error occurred while installing Nexus:
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This is caused by insufficient permissions and needs to be switched to the administrator user to run CMD.

There are two ways to switch to a administrator user:
1) Use the runas command
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Then enter the administrator password, administrator not set the password (try failed,win7 Administrator The initial password is empty, seemingly forget whether reset)

2) Start Menu--〉 search box enter cmd--〉 right-click above search results cmd.exe--〉 select "Run as Administrator", you can administrator users into cmd
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Additional Nexus installation steps are as follows:
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This article is from the "six-degree space" blog, be sure to keep this source http://jasonwalker.blog.51cto.com/7020143/1416717