Windows7 repair?

In my pc windows7 licence copy. Now it is restarting problem, so engineer say it is not repair possible so it should be reinstall required. But problem is my personal software configuration will now not possible to set again, so I want to repair windows7.?
By: bharat
Date: Sat-Jun-10-2017-
Reinstall OS
[d] By: Guest
Date: Sat-Jun-10-2017
What is 1 + 100

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