If you are a Windows 8(.1) or Windows 10 user and windows search doesn't work, and you have tried restarting your computer and it didn't work, try refreshing your computer. A computer refresh will only reset the settings and it won't delete your personal data, such as photos, videos, etc.
Check out the solutions to don't know how to reset my device, to learn how to refresh your computer.
NOTE: Your computer’s settings will be restored to their default values and any application that was NOT installed through the Windows Store will be removed.
Windows 8(.1) and Windows 10 offer a PC reset feature. This feature will reinstall Windows and restore its default settings, but it will also delete all the personal data stored on your computer, such as photos, videos and other important documents.
If you want to learn more details about this feature, click here.
If you have tried all the other solutions and none of them worked (Including the PC reset and PC refresh) the only thing that remains to be done is to reinstall Windows (from the disk or a bootable USB).
Please bear in mind that this is not a simple procedure, and that involves data loss. To learn the safest way to reinstall Windows, check out the don't know how to install and operating system guide.
If you don’t receive the email in the next 2 minutes please check your junk folder, and add [email protected] to your safe sender list.