Photoshop cannot install due to error

[Allison_]

I am having issues installing Photoshop CC v21.2.1 from my creative cloud app. It will begin to install, then part of the way through (usually around 20%) a message pops up saying "Insufficient disk space. Please clear space and try again. (Error Code: 120)". The issue is, I have plenty of space. I moved the install location from my default drive (which would have had enough space but it was a little tight) to another drive that had over 600 gigabytes free. It continued to display the same message, even though I could see that it was installing into the correct drive. I even tried installing another program, Illustrator, which I know has an even larger file size than Photoshop, and that worked fine. I also tried installing an older version of Photoshop to no avail. Any help solving this issue would be greatly appreciated. 🙂

[kglad]

some files are still installed on your c drive.  if there's not enough room for those files, installation will fail.

[Allison_]

But then why would I be able to install Illustrator just fine? It goes to the same location and I installed it from the same place, so I don't know why there is that descrepancy?

[Test Screen Name]

Photoshop may need more space on C. At the time the error is on screen, how much space is free on C?

[Allison_]

After downloading the creative cloud app I have about 800 mb free. I knew that probably isn't enough, so I change the location for app installations to a folder in my D drive, which has 600 gb free. Illustrator installed on the D drive just fine, but Photoshop can't, and I dont know why. I tried uninstalling creative cloud and putting it on my D drive, but I couldn't change the location for some reason.

[Test Screen Name]

You are critically short of space. You need much more than a gigabyte free on your system disk, just to run normally. Also, as I said, some things need to be installed on C. There is c:\Program Files\Common Files which cannot be moved. There is the Windows installer database which grows with everything you install. And much more.