I accidentally installed windows 8.1 three times

[Cubelet2]

I built a pc and when I installed windows it took me three attempts to get it to work. Now I have three copies of windows on my computer. How do I delete the two I don't want?
Thanks

 

[mrt3]

Just boot your pc in the desired OS you wanna keep and then just format other partitions with unwanted os

 

[Cubelet2]

They are all in the same partition

 

[mrt3]

They are all in the same partition

so just press window+R key then type msconfig the press enter, click on boot and then delete desired OS.

 

[Cubelet2]

I did it and it worked. Thanks for the help

 

[mrt3]

I did it and it worked. Thanks for the help

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