jonathan87; Sure, can do .
Whereas linux ('buntu) is able to address Windows' file systems, to Windows there is no other operating system in existence, and Windows could care less about another installed operating system and will not "see" any other.
But yes, those old partitions can be deleted and re-purposed for use by Windows ( and 'buntu for that matter).
As these partitions were created from 'buntu, use 'buntu tools to delete them.
1st is to identify the partitions that you keep.
Find out what is mounted:
In the output are the UUID's of the devices ( partitions are also devices) . Now we want to match the UUID to the partition:
We now know what partitions are in use, and have a good idea of what partitions may be eliminated.
The GUI way :
Activate ubuntu's partition editor GParted, and in this tool either delete the partitions or reformat to NTFS; and in Windows set up the new partitions.
If you require additional guidance, please provide the outputs - between code tags - and a screen shot of GParted's depiction .
code tag tutorial:
ain't nothing but a thing