Hi everyone! Not sure if anyone else is experiencing the same issues I am having, but it's driving me nuts and I can't seem to fix it, so here I am pleading for help. My iMac (21.5" Late 2013, 8GB RAM, 2.7GHz i5, 1TB HDD, MacOS Sierra 10.12) has been going extremely slow. It has been happening gradually, about 4-5 months ago, it started locking up when trying to log off, consequently the same would happen when trying to shut down or restart. Switching users worked without a glitch. After that it was randomly getting slow, lately coming up to the point that typing is difficult. I managed to sort out the issue of it locking up when I reinstalled the OS, but since then the computer has been getting slower and slower. I have owned multiple macs and I've never had the issues I'm experiencing. What prompted me to ask here is that today I've been trying to type up an important document on Pages. Firstly it took a good minute or 2 to actually open pages, once it is opened, it took a good 30 seconds for me to be able to choose a new font. It then took another 45sec to simply recognise that I had clicked on the text body to start typing. Once I start typing 2-3 letters appear, and then I get the Beachball, it stays locked up for a good 30-60 seconds, and than the other letters start to slowly trickle in. This is very frustrating and it's making usage almost impossible. I've never had an issue with this, I mean I was using an Acer laptop prior to this mac, it was an absolute rubbish computer that cost me a 1/4 of what this mac costs, and as horrible as that was typing was never an issue. I really can't work out what the issue is, I try to keep the memory as clean as possible, by not keeping any more than 4-6 tabs open on safari, I've reverted to using safari as Chrome seems to eat up my RAM, I keep the bear minimum of apps running, literally the minimum to get my work done. Often it is 2 tabs os Safari, Preview, Pages and Finder. There isn't any music running, no Flash, and sometimes there is another user logged in, but even then, there isn't a lot of stuff open there either. Please help, I really don't know what else to do to fix this issue, and it is making me punch a hole through this mac. Thank you all in advance.