Illustrator Hangs on Save

I was wondering if anyone could help me with this. I have been using Illustrator and Photoshop CC frequently recently for some school work. Every now and again I would have had problems with them running slowly or stopping responding, but never at any specific time and not consistently. I think part of the issue was that I was running it on my SSD which doesn't have much space, and forgot to set my HDD as a secondary scratch disk.

Over the past week or so Illustrator has been hanging almost every time I try and save a file. Sometimes it starts responding again after a while but it usually hangs for long enough that I need to force it to close in task manager. Most of the time this results in lost data and I have to work back from a recovery file (which I cannot save after I've worked on it). Sometimes it manages to save or creates a temp file before it hangs. This happens regardless of whether it is saving to my HDD (locally) or to Creative Cloud. !

I have tried a few things to fix this so far. As previously mentioned, I set my HDD as a secondary scratch disk to resolve any possible storage issues. I also set my default printer to Print to PDF (I don't always work in my house connected to a printer and I know that that can sometimes cause issues with saving so I thought this might resolve it). I also freshly installed CC.

Here is a copy of the error from Reliability History in Control Panel:

Source
Adobe Illustrator CC 2017

Summary
Stopped responding and was closed

Date
‎16/‎03/‎2017 09:38

Status
Not reported

Description
A problem caused this program to stop interacting with Windows.
Faulting Application Path: C:\Program Files\Adobe\Adobe Illustrator CC 2017\Support Files\Contents\Windows\Illustrator.exe

Problem signature
Problem Event Name: AppHangB1
Application Name: Illustrator.exe
Application Version: 21.0.2.242
Application Timestamp: 5877e8f5
Hang Signature: 824f
Hang Type: 134217728
OS Version: 10.0.14393.2.0.0.768.101
Locale ID: 2057
Additional Hang Signature 1: 824fb2fe2ba87d1b478728253a9a3f35
Additional Hang Signature 2: bf31
Additional Hang Signature 3: bf31c5f9a1150956336d9da3de88b092
Additional Hang Signature 4: 824f
Additional Hang Signature 5: 824fb2fe2ba87d1b478728253a9a3f35
Additional Hang Signature 6: bf31
Additional Hang Signature 7: bf31c5f9a1150956336d9da3de88b092

If it helps at all, I'm running this on my Acer Aspire V Nitro with an i5 Processor, 16GB RAM and 64-bit Windows 10. It also has a NVIDIA GeForce GTX 960M Graphics card, but I have noticed earlier that Illustrator doesn't seem to recognise it although Photoshop does.

Any help you could offer would be greatly appreciated.