ghost files on hard drive

[SchismTech]

So I used a 2TB HDD from my family's old NAS in my computer build (first build). Windows 10 and everything loaded on and works fine. But the hard drive says I have 1TB full. I go into it and look at the folders, which add up to about 150GB. I'm planning on cloning everything to an SSD soon and I'm worried I won't be able to because the ssd won't have enough space. Can someone tell me how I can get rid of these ghost files? Thanks.

[Pesukarhu]

Use this program. It scans your hard drive and tells you what takes space and where to find it. https://windirstat.info/

[SchismTech]

thanks, i'll give it a try!

[Bajantechnician]

26 minutes ago, SchismTech said:

So I used a 2TB HDD from my family's old NAS in my computer build (first build). Windows 10 and everything loaded on and works fine. But the hard drive says I have 1TB full. I go into it and look at the folders, which add up to about 150GB. I'm planning on cloning everything to an SSD soon and I'm worried I won't be able to because the ssd won't have enough space. Can someone tell me how I can get rid of these ghost files? Thanks.

dban