It’s not related to Storj either. It’s a setting of your OS, so it’s used for everything.
However, If you have a managed UPS (which can gracefully shutdown your Windows), then you may enable the second checkbox.
I think, it likely may be not enough and you would need to perform an optimization tasks (defrag), however, it would not lasts enough due to limitations of NTFS. You may optimize it though:
So, perhaps the better direction would be to enable a badger cache:
The first run would be slow as usual, then it would improve. It may also help with the random access and random writes.
However, it’s highly recommended to do any optimizations after you fixed disk and databases issues and did at least once a regular defragmentation.
The complete solution would require to migrate either to Linux or use a Primocache (especially for multiple nodes).