can i make my c drive bigger without having to format and re partition?

You can use something like EasUS (free for personal use, reasonably priced for commercial use) to do so: http://www.partition-tool.com/

There isn't anything native in Windows to my knowledge that will achieve what you are trying to do unfortunately.

Hi,

You can try this method which is integrated to Windows (Win 7 +)

https://tweakhound.com/2013/01/02/how-to-resize-your-windows-8-partition/

You need to do "Extend" instead of "Shrink"

Regards,

Hi
Another tool is call MINI tool

Very easy to use and also FREE. Been using this for many years now.

http://www.partitionwizard.com/free-partition-manager.html

You can also look at the video in the link above.

With this tool, you can:
Resize partition
Convert disk partition
Recover Partition and rebuilt MBR
Align partition and much more.

You should try it. :)

> Another tool is call MINI tool

Not another tool — same tool as the one I posted in <http:#a40612444>. :)  Regards, Joe

aaahhh! lol

Well Joe's got it!!!  Mini tool is a very good one.  :-)

you should be able to expand the C: drive with the 8 Gb unallocated, by right clicking it, and choosing extend
if you don't have that option, i recommend to use Bootit-BM - free for this task     www.terabyteunlimited.com/       
download the cd  -and make the cd - boot from it
do NOT install it on the disk - hit Cancel
select partition work - rightclick on C: and select resize; include the 8 GB
that's it

The integrated tool with not work. Because for this it needs the free space to be located after C: partition. Not before it.
The other suggested tools will work but still there is risk that something can go bad, thus take backup of your system and data before you start doing this resize. Note, resizing partitions is a potentially dangerous operation for your data and system, through in 99% it works well. So better to be insured.

As an alternative you can use this tool: http://www.paragon-software.com/home/hdm-personal/index.html 
It has both backup and resize features in it. And lots of other features you could ever need with your PC.

perfect did exactly what i needed
to be honest i weas expecting it to screw up my os
so more than happy it worked :)

I'm glad it worked for you. Thanks for letting us know your results. Regards, Joe