(adsbygoogle = window.adsbygoogle || []).push({}); I have a 1.5 TB USB External with 1.2 gb as fat32 and 300gb NTFS. If I would format the NTFS to Fat32 could I merge the 2 partitions without losing my data on the original Fat32? Thanks!

just make a copy of what you have in the fat32 portion, format harddrive to fat32 in order to merge and then just drag your documents back to the hd..

You cannot merge 2 partions without loosing data. You need to unpartion then format and re-partion the 2 partions into 1 partion.
Simple answer: NO, just try copying your data onto another hdd or external hdd.