Problem showing in new installation of manager 20.8.63

hello Team
today i format my laptop. afterthat when i install manager then manager is not opening. it’s showing that error

plz help me to resolve this issue.

What version of dotNet do you have installed

The latest version of .Net Windows 7 supports is 4.8 according to

i am using .Net 4.5.2

v4.5.2 is older than the v4.6.1 Lubos said was the minimum required.
You will need to update dotNet as Lubos directed

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