Both Windows 7 and Windows 10 are operating systems. Neither of them can, in their own right, edit photos (or create documents, design spreadsheets or anything else). You need specific task-orientated software for that.
My post here lists all of the main freebies for image-processing that you might care to consider:
http://www.theanswerbank.co.uk/Technology/Internet/Question1435155.html
However Irfanview might meet your current needs best:
http://www.irfanview.com/
It's fully compatible with Windows 10. To create a sepia image you simply need to open your image then go to Image > Effects > Sepia. Job done!