|"I have have a 500gb hard disk with 3 drives "|
All drives in Windows are logical drives - the term logical is usually omitted.
I'm assuming that's an internally installed 500gb hard drive, that has 3 partitions on it, and 3 (logical) drive letters were assigned to those partitions.
If the 500gb drive or what was E is an external drive, that's a different situation.
Did you Restart the computer after re-sizing the partition ?
If you didn't, DO THAT !
If that doesn't help, I don't know of any way you can fix your problem.
If you had deleted a partition or had deleted the data on it without changing the size of the partition, that can be recovered from, but when you have changed the size of the partition, I don't know of any way you can fix your problem,
"using EASUS" "with EASEUS"
There is both a Easus and a Easeus (what is generally called "partition manipulation") program. They are made by different makers.
Which one did you use ?
I have tried both - the Easeus one appears to be far better.
What are generically called "partition manipulation" programs always urge you to back up your data before you do anything, just in case something goes wrong.
I haven't tried using Easeus to re-size a Windows 7 or Vista NTFS partition.
The NTFS version Vista and Windows 7 uses is slightly different from previous NTFS versions.
I have read that some third party programs can't successfully resize a NTFS partition made by Vista or Windows 7, as in, you lose access to the data that was on the partition. I don't know if that applies to Easeus's program. It DOES apply to older programs that were not designed to be used with Vista and Windows 7.
You don't need to use a third party program to re-size a NTFS partition made by Vista or Windows 7 - the ability to do that is built into Vista and Windows 7, in Disk Management. However, you have to search for instructions about how to use that feature on the web because there's not enough info about it in the Help in Windows itself, at least there isn't in Vista's Help.
You could try looking on Easeus's (or Easus's) web site for troubleshooting info.