I Installed Ubuntu 16.04 LTS next to Windows 10. I decided to increase my Ubuntu partition because I don't have enough space for apps, So i went to Windows 10 and shrink my larger Partition and now I have 50 GB of unallocated space.. So my question is:

How can I safely expand my Ubuntu partion using this unallocated space? I also have a bootable pendrive with Ubuntu .iso
"nieprzydzielone" means unallocated, sorry, gparted is in Polish, the Orange one is the partition I want to expand

Make sure that you have a good backup of your important Ubuntu files, as this procedure can corrupt or loose data.

The use of an extended partition (sda3) makes this a little difficult. I'll outline the easiest way first, and we can add more to the procedure if we have to.

Keep these things in mind:

• a move is done by pointing the mouse pointer at the center of a partition and dragging it left/right with the hand cursor




• a resize is done by dragging the left/right side of a partition to the left/right with the directional arrow cursor




• if any partition can't be moved/resized graphically, you may have to manually enter the specific required numeric data (don't do this unless I instruct you to)




• you begin any move/resize by right-clicking on the partition in the lower part of the main window, and selecting the desired action from the popup menu, then finishing that action in the new move/resize window

Do the following...

Note: if the procedure doesn't work exactly as I outline, STOP immediately and DO NOT continue.

• boot the a Ubuntu Live DVD/USB


• 
  

  start gparted or run the following command to open gparted:

  
  
  

  sudo -i gparted &
  
  

  
  

Step #1

• right-click on sda5 and select swapoff
  


• right-click on sda3 and select resize
  


• 
  resize the left side of sda3 all the way to the left
  
  
  
  
  • it may be difficult to grab the left side of sda3, if so, STOP here
  
  
  
  


• you'll see that the unallocated space is now used by sda3


• close the move/resize window


• click the Apply icon

Step #2

• right-click on sda5 and select swapoff (already done in Step #1)


• right-click on sda5 and select move
  


• note (write down) the numeric partition size before the move
  


• 
  move sda5 all the way to the left (inside of sda3)
  
  
  
  
  • be carefull not to resize sda5. If you do, cancel and start Step #2 again
  
  
  
  


• close the move/resize window


• click the Apply icon

Step #3

• right-click on sda6 and select resize
  


• 
  resize the left side of sda6 all the way to the left


• close the move/resize window


• click the Apply icon


• this may take a while so be patient


• right-click on sda5 and select swapon
  

Now quit gparted and reboot your computer, being sure to remove the USB flash pen at the appropriate time.