As suggested by another site I have gone to Regedit and then to HKEY-CURRENT USER and created a new DWORD value NOLOWDISCSPACECHECKS
Based only on the information you have provided us here, this was reckless, careless, irresponsible and potentially hazardous advice you were given!
It is like someone telling you to cover up the Check Engine "
warning" light on your car so the bright light won't annoy you anymore. Operating systems need lots of free disk space to freely operate in. Every time you start Windows, many files are opened and many temporary files are saved on the disk. Every time you start a program and open a user document, temporary files are created and saved to the disk. This process needs disk space. The Page File needs space to operate in as does System Restore and Recovery. Performance can be greatly impacted if the Page File is squeezed and System Restore/Recovery will terminate if necessary when space is low - which defeats their essential purposes.
If you run out of disk space, your computer can come to a screeching halt and in some cases, file corruption and loss of your data can occur.
So instead of disabling and ignoring the warning, those advisors should have helped you find out why you are getting it and then help fix the cause for it. If you know
exactly what you did in the Registry, I would undo that change.
So, what is your drive configuration and how much free disk space do you have? If File Explorer reports you have lots, then there is probably some corruption or hidden file misbehaving. If it reports only a few GB or less, you need to free up space immediately. To free up disk space, you need to first, clean out the clutter by running Windows Disk Clean Up on your drive(s). If you recently upgraded to W10, you may have a folder on your drive called Windows.old. This contains the necessary files to roll back to your previous version of Windows. It often is more than 25GB in size but is not needed if your computer is running fine otherwise and you plan to stick with your current Windows version. You can manually delete this folder or in Windows Disk Cleanup, select the option to delete "Previous Windows Installation(s).
You should look through Control Panel > Programs and Features and uninstall any program you installed but don't use. If you are not sure what something is and Google does not help you determine what it is, leave it. If you have a lot of user files like photos and tunes on this disk, you may need move them to another drive.
Ultimately, these are typically temporary solutions to the problem of you don't have enough free drive space. The permanent solution is to buy more.
