Hello. Can anyone help me with this one: I have just installed a HDD that had been previously used. It has 4 partitions and I want to merge them into only one. HOW DO I DO THAT?! :) thx

Give us a clue. :confused:

Are these EMPTY partitions, or do they hold folders/files?

Assuming they do have content...
Do you have any other internal or external storage [HDD?] big enough to temporarily hold the data files whilst you rearrange the partitions?

Does one or more of these partitions have OS's and programs installed?
If there are OS's, were they installed on this [or identical], or different hardware?

Can you afford to wipe the drive clean and begin anew [zero-fill, repartition & reformat]?