If it's not there then your Windows is somehow corrupted. Try to run from Admin Command Prompt to see if it can fix the problem. Just copy and paste what I have below.
Dism.exe /online...
Type: Posts; User: topgundcp
If it's not there then your Windows is somehow corrupted. Try to run from Admin Command Prompt to see if it can fix the problem. Just copy and paste what I have below.
Dism.exe /online...
The executable is taskmgr.exe and is in: C:\Windows\System32\taskmgr.exe.
Check to see if it's there.