(In the worst cases of a damaged registry you may need to repair Windows itself). TBH though I suspect that you will need to update, restore, reset, or even uninstall/reinstall Chrome to fix the registry entries for it. All you've gotta do is enable it: Open up your Chromebook's settings (by clicking the clock in the lower-right corner of the screen and then clicking the gear icon in the panel that pops up). There are steps here for trying to fix SSL problems in Chrome: Sometimes the little CMOS battery inside your computer runs out so it can't keep the time/date when turned off. Obviously the first thing to check is that your system date and time is correct. It has probably been caused by using the Registry Cleaner, - You should not use any Registry Cleaner with Windows 10 (or 8, or 11) unless it's for a specific reason, see here for the CCleaners advice: So, and especially as you are getting the same error on other sites, it's an issue with the Chrome on your machine. However I visited your link (in Firefox) and on checking the sites certificate it is in date. As I suspected the error is 'CERT_DATE_INVALID', saying that the SSL is out of date.

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