Hello Jacques,
Thank you for posting question on Microsoft Windows Forum!
Based on the issue description. It is highly likely of that your C: drive is being heavily consumed by leftover Windows Update files and possibly large applications. When your drive is that full, Windows struggles to manage "spooling" files (which might explains why you can not print) and "swap" files, which slows everything down to a crawl.
The suggestion here is to use Windows Built-in tools to find the actual space-hoggers. Sometimes it is not apps, but hidden system backups or temp files. Go to Settings > System > Storage. This gives you a breakdown of what is taking up space (Apps, Temporary files, Other). Also, click on "Cleanup recommendations" in that same menu. Windows will identify large or unused files and old Windows installation files (the Windows.old folder), which can often be 20–40 GB.
Please be aware: Deleting Windows.old means you can not roll back to the previous version. Before removing apps. Double-check you do not need them for work and always back up important documents before major cleanups.
Hope the provided information is helpful! If it is. It is appreciated to consider clicking "Accept Answer".