How do i merge partitions without breaking system functionality

[braidedwire]

Hi everyone,

I have a new SSD drive that i cloned from the old one. The old system SSD (128 GB, Windows 7) had 2 partitions: hidden, restricted 100 MB (system, primary) and the main one with Win7. 

After cloning this disk to new SSD (500 GB) i have 3 partitions:

• hidden / restricted - 100 MB
• Win7 -  120 GB
• Unallocated - 347 GB

The last one is not visable in Windows. How do i merge Win7 and Unallocated to one partition without damaging the system?

I cloned another drive (HDD's from smaller to bigger one) as well and when i merged data partition with an empty partition EaseUS put all my data into one folder. So if something like that happens again i'll have all my system data in a folder and it won't boot / start up.

Please help me with this.

[PDifolco]

Disk management in Windows, you can extend a partition with unallocated space 

[braidedwire]

Thanks, simple but effective! To anyone trying to achieve a similar effect: don't merge partiotions - it takes forever. Extend instead.