Mate just passing through, looks like you got the hang of that screenshotting. Which solution did you use?
Wiz, Photobucket is the best one that I've used. The cool thing is that all one has to do to post a link is bring up the picture or screenshot & click the IMG box under "Share Links", then click back to the forum page, right click & select "Paste". That's all there is to it.
Uploading of photos/screenshots is easy, once you're on the site, it's self-explanatory. Just drag the images you want into the area shown. You'll be given the opportunity to name or label each image.
Keith1, one thing I see in those snapshots of concern. Whatever "shop" performed this install should redo it, with 2GiB RAM installed (1.9GiB shown), some Swap is needed, I'd say 1.5 to 2.0GiB with that amount. You're going to run into troubles with that much RAM & no Swap. If you had 8GiB or more RAM, I could go along with this, whomever did that job just set you up for a return visit & I'm serious about this. Even with 4GiB, it's best to have 512MiB to 1GiB available.
Do you get the same errors after a reboot?
Hopefully some of the information that Nick has pointed you to is of assistance.
Please keep us posted, and you should contact whomever did this job & ask why no Swap was created. You paid for a service, it should be done right. Oftentimes, many of these shops are familiar with Windows, and some won't even touch Linux, but some who does still doesn't do a good job, because they don't know how to in many instances. Not that their intentions are always bad, it's just that most Linux users performs their own installs. At least those that were built & sold before Windows & Secure Boot hit the scene. That made it harder for the casual user, but also for shop staff also. All of these different brands & models & all OEM's has their own way to implement & disable Secure Boot.
If that's the case with you, Secure Boot is now disabled, to my knowledge, there's no shim or key available for Linux Mint to work with Secure Boot, though this data changes often.
And again, I'm not necessarily saying the shop intentionally shafted you, but rather wasn't aware of the need for a Swap partition.
Nick will likely agree with me on this. A Windows expert means nothing in the Linux world, the hardware yes, it's the same. But not the knowledge on how to properly create partitions, this stuff is easy to do, it's easier & faster than a Windows XP, Vista, Windows 7 & 8/8.1 installs. No multiple rounds of updates & reboots needed.
Hopefully this is sorted out soon.