How to check the installation time of win7 system

  
The length of the win7 system determines the smooth running of the system to a certain extent; then how to query the installation time of the win7 system? The following teaches you a simple win7 system installation time query method.
In fact, we only need a simple cmd command to easily implement.
Through the shortcut key of Win+R, bring up the “Run” window and enter the corresponding code below:
1. English system input:
cmd /k systeminfo
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