Some fixes and some info.
A reader emailed about my article The Windows 7 Pagefile And Running Without One from 2011.
IMHO this article is outdated and does not apply to Win10.
The way Windows handles memory has changed significantly since Windows 7. Under Win10 the pagefile min and max varies on a number of factors.
IMHO most people will never see any change in performance regardless of pagefile settings and it is therefore pointless to mess with it. The best solution is a fast SSD and plenty of RAM.
See: How to determine the appropriate page file size for 64-bit versions of Windows
Windows 10 1903 SearchUI still broken?
If you are still having issues with Cortana/searchui.exe CPU spikes then Microsoft may have a fix for you:
Fix problems in Windows Search – Use the Use a PowerShell script to reset Windows Search section.
Windows 10 sfc /scannow Not Working
Recent Win10 updates have broken sfc /scannow. To fix this:
1 – Open a Admin command prompt > enter or copy/paste: dism /online /cleanup-image /restorehealth and let it run
2 – Enter or copy/paste: sfc /scannow > done!