I haven't used Photoshop since December, and didn't use it much at all. I got a "full scratch disk" error that prevented me from launching it, so I attempted to install a recent upgrade, thinking that might solve the problem. The update failed. So I did what I normally would do, and uninstalled the software so I could reinstall it. However, that didn't work either. I tried to install the Creative Cloud again (I bought PS as a standalone product without the other apps). After I ran it, the app redisplayed the same Update dialog I'd attempted to use earlier. I tried it again, and the update still failed. What is going on? How do I get Photoshop up and running?
[Moderator moved the thread to the correct forum: Photoshop]
PS. I'm on Windows 10.
When your scratch disk is full, you have to fix the full scratch disk. No amoujnt of uninstalling and reinstalling and updating and hoping it's a bug is going to do that for you. Do you understand what Photoshop means by scratch disk? Let us know, as I'd rather give an explanation that makes sense.
" I looked it up and it said I had missing or corrupted .dlls, "
Unfortunately there is a lot of really bad info on the internet, and this is a good example: it's just nonsense.
It's really very simple: Photoshop is designed to work with very big files, and when it starts it makes a huge, huge file to store info about your edits. You can choose which disk (or disks) to use for these huge files. These are called the "scratch disk". There's nothing broken, it's just saying your disk is too full.
There are three causes of this:
1. The disk really is nearly full. You should make sure you have at least 20GB free, and that's a bare minimum.
2. You have plenty of space, but it's on another disk. You can tell Photoshop to use that disk instead.
3. You are unluckily trying to edit a really, really huge file (this can happen because of errors in New document too).
I'm going to assume you have only one disk. A lot of computers come with a disk (SSD) that's just too small, and it gets filled with all sorts of things. So, how much free space is there on your disk? If you're not sure, let us know.
Sounds like your computer doesn't meet the min-system requirements to support Creative Cloud & Photoshop efficiently. An underpowered machine is very frustrating. See links below.
Pay particular attention to Photoshop's new GPU requirements. See links below.