Word Processing Performance? : Just for normal word processing you do not need great hardware, Yes you can increase RAM to 16 GB. But if you are using 32 bit version of office it won't use more than 4GB anyways. You can check version of office from File > Account > about. In order to change it 64 bit this version needs to uninstalled.    Updating to 64 bit would use more resources if required. For normal use case it doesn't help much However for heavy usages it does.    Speaking about upgrades, memory upgrade should be your last option. First, I believe 8Gb is sufficient memory. Also RAM (DDR3L) can not be carried forward to a new computer so the investment would last as long as this machine lasts.  Your first upgrade should be an m.2 SSD. Unfortunately machine doesn't support PCIE (NVME) SSD. But even m.2 SATA would give you better performance than the current hardware. Machine supports both of them at the same time, so you won't loose than 1 TB HDD of yours. Installation would be simple,  1,  Install SSD  2. Clone your hard drive to SSD (Dozens of free software available to do that)  3. Change boot order in BIOS to SSD 4. machine boots to SSD ,format your hard drive.   
Hello. I'm an editor who uses Word 2019. Sometimes the documents I edit are very long, with lots of marginal comments. Often this means that navigating the document is extremely slow: lots of stuttering and temporary 'program not responding' messages, etc. What would be the best way to improve performance in Word? Would it be to replace my HDD with an SSD, or upgrade my RAM? My current components are: CPU (cannot replace): 6th Generation Intel Core i5-6300HQ Quad Core (6M Cache, up to 3.2 GHz) RAM: 8GB Single Channel DDR3L 1600M Hz (8GBx1) HDD: 1TB (5400rpm) Hybrid HDD with 8GB Flash Thank you very much.    
2016 Inspiron 7559: SSD or RAM Upgrade to Improve Word Processing Performance?