I have just installed Windows 10 (20H2) by partitioning disk as C and D drives and shrink the C drive using Disk Management Tool of Windows for installing Ubuntu. Then I installed Ubuntu and on Windows, I realized that there are too many partitions as seen on the following image:
Normally Windows was creating just a single recovery partition during installation or disk partitioning, but for my situation I am confused about the following issues:
1. I am not sure if the partitions 100 MB (EFI System) and 537 MB (Recovery Partition) are normal or extra. Is EFI System partition related to new Windows version (20H2)?
2. Is 537 MB (Recovery Partition) created while installing Linux? I do not remember it after shrinking C drive yesterday, but not sure.
3. Can I delete some of these 3 partitions (499 MB, 100 MB, 537 MB)?