Administrator command prompt greyed out

Hi guys, I just recently built a desktop computer it's running windows 10.
the problem is there's only one account on it that's the administrator account that's me.
I can run everything else as the administrator applications, settings, power shell ect.
The administrator command prompt opens and the yes button works. But
I can't type in it I just get beeps also the title administrator command prompt is greyed out.
User command prompt works and power shell as administrator works too.
I'd like to get the administrator command prompt working any help is appreciated.

Use the keyboard to see if you can open administrator command prompt:
Type:
1) win + x (simultaneously)
2) a
3) alt + y (simultaneously)

Once administrative command prompt is open type or copy and paste:
1) sfc /scannow
2) dism /online /cleanup-image /scanhealth
3) dism /online /cleanup-image /restorehealth
4) chkdsk /scan
5) net user test /add
6) When these have completed > right click on the top bar or title bar of the administrative command prompt box > left click on edit then select all > right click on the top bar again > left click on edit then copy > paste into the thread7) shutdown /r
8) sign on with the new user named test
9) report into the thread whether the new user named test can or cannot launch or open administrative command prompt

zbook said:

Use the keyboard to see if you can open administrator command prompt:
Type:
1) win + x (simultaneously)
2) a
3) alt + y (simultaneously)

Once administrative command prompt is open type or copy and paste:
1) sfc /scannow
2) dism /online /cleanup-image /scanhealth
3) dism /online /cleanup-image /restorehealth
4) chkdsk /scan
5) net user test /add
6) When these have completed > right click on the top bar or title bar of the administrative command prompt box > left click on edit then select all > right click on the top bar again > left click on edit then copy > paste into the thread7) shutdown /r
8) sign on with the new user named test
9) report into the thread whether the new user named test can or cannot launch or open administrative command prompt

zbook, thanks for your reply I was finally able to open and use the admin cmd prompt I used power shell in admin I will keep your suggestion in mind if it happens again.

If you had a fresh install of windows the menu displays powershell instead of command prompt.
That can be modified so that you see command prompt.
See this link:
Show Command Prompt or Windows PowerShell on Win+X menu in Windows 10 Customization Tutorials