Installing CentOS to Windows laptop - not enough space

[smatsushima1]

I'm trying to install CentOS onto an old Thinkpad via USB and so far got everything working until it said I didn't have enough space to install it on my 300 gb hard drive:

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I clicked on "Automatically configure partitioning" and checked the box "I would like to make additional space available" to try and reclaim some space:

20170521_145631.jpg (93.98 KiB) Viewed 1165 times

I'm left with this list of partitions that I can delete to free up space for installation:

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So my question is: am I right to assume that I should delete all these sda files/drives (?) anyway since I'm trying to create a whole new OS, and that installing CentOS will create new partitions anyway? I'm not concerned with saving any data from the laptop since I bought the laptop from a guy on craigslist specifically for the purpose of having a Linux laptop.

[mghe]

Yes, You can delete old Windows partition to make free space for CentOS system.

[akunito]

The dual boot is not supported by CentOS

Maybe there are some method for do it.. Least I couldn't.