A:AnswerYes, it can be upgraded to 16 GB of RAM. It has two slots, so you'll need two sticks of 8 GB. Upgrading RAM in an all-in-one is complex, with disassembly required.
A:AnswerNo but there are some similar models available in black. Here's a link to them.
https://www.bestbuy.com/site/searchpage.jsp?st=hp+23.8%22+touchscreen+all+in+one+black&_dyncharset=UTF-8&_dynSessConf=&id=pcat17071&type=page&sc=Global&cp=1&nrp=&sp=&qp=&list=n&af=true&iht=y&usc=All+Categories&ks=960&keys=keys
A:AnswerThis computer should not run that slow if you are hardwired and your speed tests show 100+ MBPS. Please contact HP Tech Support for troubleshooting options. https://support.hp.com/us-en Good luck!