14.04 - Ubuntu Dual boot install with windows 8.1

I have Windows 8.1 on C: drive and i want to install Ubuntu14.04 on D: drive and i will be extending D: drive with E: what i want to know is ,is it fine if i select install "Ubuntu alongside windows" option and is it ok to keep three partitions?

scenario:

C: 100GB Primary partion(Boot,page file,crash dump) <== windows 8.1 installed

D:50GB Logical partition

E:50GB Logical partition <==will merge with D:

F:90GB Logical partition

Try it! Select the alongside option. The installer then will you set how much space is going to be used for Ubuntu. If it shows three partitions, you're fine. But I assume it will attempt to split up the Windows partition. If this is the case, go back and select "Something else".

Now it will ask you to set up everything manually. Do the following:

1. Delete E: (probably sda3, I can't tell) resize D: (sda2). Leave some space the size of your RAM


2. Create a new partition between D: and F: of the size of your RAM. E.g. If you have 8GiB of RAM, create a 8GiB partition.


3. Format this new partition as linux-swap


4. Format D: as ext4


5. Select the disk, where all those partitions are on, as bootloader device (most likely /dev/sda)


6. Apply and install.

This instructions my contain something that won't work, but it won't damage your Windows, if you don't do anything stupid. But you should still create a backup of all your important data, since partitioning can always harm the data on the affected disk.