Hi Morpheous. I'm Greg, an installation specialist and 8 year Windows MVP, here to help you.
Right click Start button to open Task Manager, show More Details, then choose Processes tab, scroll down to Windows Processes, then further down to Windows Explorer. Right click to Restart, click OK. Restart PC.
If you're running Malwarebytes Real Time (unnecessary unless you get repeatedly infected) I would disable it to troubleshoot. Run only Defender which gives best Windows performance, least issues and is from Microsoft who knows how to protect their OS best.
Go over this checklist to make sure the install is set up correctly, optimized for best performance, and any needed repairs get done: http://answers.microsoft.com/en-us/windows/wiki...
Start with Step 4 to turn off Startup freeloaders which can conflict and cause issues, then Step 7 to check for infection the most thorough way, then step 10 to check for damaged System Files. Then continue with the other steps to go over your install most thoroughly.
Update your drivers from the PC maker's Support Downloads web page, using the full model number, Serial Number or Dell Service Tag on sticker. Compare the latest drivers available for download with the ones presently installed in Device Manager reached by right clicking the Start Menu. Make sure you have the latest BIOS or UEFI firmware, Chipset, Display (Video), Sound, USB3, Bluetooth, Network and all other drivers, or else download and install the latest now.
If nothing else helps you can also roll back the Version 1803 Update at Settings > Update & Security > Recovery, or from Repair Mode accessed by one of these methods: https://www.tenforums.com/tutorials/2294-advanc...
But remember that in Windows 10 everything depends upon the quality of the install, and Factory or Upgrade installs are inferior installs which most enthusiasts won't even run because they'd expect endless issues. Consider now or later doing the Clean Install in this link which compiles the best possible install that will stay that way as long as you stick with the tools and methods given: http://answers.microsoft.com/en-us/windows/wiki...
There is also an automated Refresh that reinstalls WIndows while shedding corrupting factory bloatware, saves your files, but doesn't clear the drive to get it cleanest: https://www.howtogeek.com/265054/how-to-easily-...
I hope this helps. Feel free to ask back any questions and let us know how it goes. I will keep working with you until it's resolved.
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