Hi Richard,
I would suggest you to check if the issue occurs in a different user account (administrator) or not.
To create a new User Account, refer to the articles and check if it helps.
Create a user account
If the issue does not exist in new user account, you may have corrupted user profile. You may follow the steps to troubleshoot a corrupted profile.
a) Press Windows and x together and select
Windows Explorer.
b) Click on View tab and Click on
Options at the top right corner.
c) Click the View tab, and then click
Show hidden files, folders, and drives.
d)Uncheck the box which states
**Hide protected operating system files.**e) Click Yes to confirm, and then click OK.
f) Locate the C:\Users\Old_Username folder, where C is the drive that Windows is installed on, and Old Username is the name of the profile you want to copy files from.
g)Select all of the files and folders in this folder,
exceptthe following files:
•Ntuser.dat •Ntuser.dat.log •Ntuser.ini
h) Right-click****and Select Copy.
i) Locate the C:\Users\New_Username folder, where C is the drive that Windows is installed on, and
New Username is the name of the new user profile you created.
j) Right-click****inside the folder and select Paste.
k) Restart****your PC and check if you are able to log in to default profile.
Hope this information helps. Reply to the post with updated status of the issue to assist you further.