If there are important files that are not backed up you can perform a custom install.
If there are no important files then you can perform a clean install.
Both of the above:
a) require a bootable Windows Media Creation Tool (MCT)
b) require the reinstallation of drivers and applications
If there are BSOD after reinstalling Windows then you can test hardware components.
These are some links for:
a) custom install
b) clean install
c) create a bootable flash drive with MCT
https://www.tenforums.com/tutorials/120352-custom-install-windows-10-a.html
https://www.tenforums.com/tutorials/148005-how-restore-files-windows-old-folder-windows-10-a.html
https://www.tenforums.com/tutorials/1950-clean-install-windows-10-a.html
https://www.tenforums.com/tutorials/2376-create-bootable-usb-flash-drive-install-windows-10-a.html
https://www.tenforums.com/tutorials/9230-download-windows-10-iso-file.html
https://www.microsoft.com/en-us/software-download/windows10
.
.
.
.
.
Please remember to vote and to mark the replies as answers if they help.
On the bottom of each post there is:
Propose as answer = answered the question
On the left side of each post: Vote = a helpful post
.
.
.
.
.