Press the Ctrl + Shift + Esc keys at the same time to open the Task Manager application.
How to Remove Virus from Laptop Without Antivirus How can I delete virus from my computer without antivirus? If you have a Command Prompt window titled "Select Administrator: cmd.exe" with C:\Windows\system32, it means that a clean boot was performed (possibly by accident or by somebody else who used your computer before). Double-click the “cmd.exe” file or right-click the file and choose “Run as administrator.” You can also create a shortcut to this file and store the shortcut anywhere you like.
Open File Explorer, and then navigate to the C:\Windows\System32 folder. This generally happens due to accidentally placing the shortcut into the startup folder or something. As per your problem, Powershell opens automatically.
Why does Windows Powershell keep opening on startup? What Causes the System32 Folder Pop up at Startup? According to our investigations, the main cause of the problem is: Service or Application Interference: There is a great chance that a third party application installed on your computer or a Windows service is causing this issue. For your information, a virus name may contain words like "autorun" and with ".Type cmd in the search bar, right-click "Command Prompt" and choose "Run as an administrator".How do I remove CMD EXE virus from my computer? All you need to do to stop it should be to go to Task Manager -> More Details -> Startup Tab and then you can see/disable the programs that try to run on system boot. I believe CMD opens to execute startup files on the computer, sometimes for programs which try to start on bootup. However, writers of malware programs, such as viruses, worms, and Trojans deliberately give their processes the same file name to escape detection. The true cmd.exe file is a safe Microsoft Windows system process, called "Windows Command Processor". There are some Windows services and third-party applications that can make an indefinitely recurring task in your task scheduler. If the command prompt is popping up after a specific time then the most likely cause is the task scheduler. There are a number of things that can cause this. Click "Startup" on System Configuration > click "Open Task Manager".Click "Services" on System Configuration > click and select "Hide all Microsoft services" > click "Disable all".Click "Start" and search: msconfig > select "System Configuration".Solutions to CMD.exe Keeps Popping up Error in Windows How can I delete virus from my computer without antivirus?.Why does Windows Powershell keep opening on startup?.How do I remove CMD EXE virus from my computer?.
Ensure that there are no multiple security software installed on the computer as this will create a conflict between them and could result in loss of performance. You may want to disable this program from the startup items. It might be that cmd.exe might be added to the startup items folder.