Hi JLee77a,
welcome to this Apple (user-to-use) Community!
Re: Windows, Windows 10 (19045) : Cannot access my icloud drive files and folders on my HP laptop
In the short term: Apple support's online article (link below) may help:
Where else can you access the data you store in iCloud? - Apple Support
Eg: says:
"You can also access information online at iCloud.com".
To troubleshoot: If we find the cause of the situation, the solution will likely be apparent:
Re: "If I click on a folder it just freezes with the pinwheel spinning".
✽ You may want to check you have enough memory / storage space free, both on the HP Laptop, and in iCloud. (The pinwheel spinning / freezing when folder clicked / suggests the operating system is struggling.)
✽ You could also check your HP Laptop has the newest compatible OS version installed,
(ie: is security up to date with the latest available ?)
✽ You could also check your iCloud for Windows version is up-to-date:
Apple support's article may help: Download iCloud for Windows - Apple Support
✽ System requirements for iCloud - Apple Support
Eg: says
recommended (below): (yet above article also lists minimum system requirements feature by feature)
PC
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Re: "Is it a synching issue? Should I try to uninstall and reinstall".
✽ We don't really know enough about the situation yet, to say for sure.
See whether or not we find the cause via above trouble-shooting ...
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Resource: iCloud for Windows User Guide - Apple Support
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More info. / support / contact options, etc: iCloud Support Website:
(There is a "Get Support" link (online chat, phone, etc) at the bottom of their webpage (link below):
iCloud - Official Apple Support
All the best :-)