After running EasyBCD , and after going into disk management, I can't delete the free space partition. The message "There is not enough space available on the disk(s) to complete this operation" appears. The free space is 90.20GB. CAn you help? Thank you
Sorry, I don't understand what you're trying to do.
You have 90Gb of free space.
That's just an unused part of the HDD. Nothing there, so nothing to delete.
I assume you'd like to start making use of it.
If you have fewer than 4 partitions, you can just format the space into a new partition and start using it for whatever you like.
If you already have 4 partitions, you can include the space into the preceding partition, using the Disk Management "extend" option when you right click the partition in front of it.