Plesk login error

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DefPackageMng() constructor failed: defpackagemng failed: Access is denied. (Error code 5) at CreateProcess 'C:\WINDOWS\system32\cmd.exe /c ""C:\Program Files\SWsoft\Plesk\admin\bin\defpackagemng.exe" --get"'
at execUtil C:\Program Files\SWsoft\Plesk\admin\bin\defpackagemng.exe --get on c:\windows\system32\inetsrv(PleskSrvClient::execUtil line 435)
at execute console command --get(vconsoleapp::start line 128)
at execute "C:\Program Files\SWsoft\Plesk\/admin/bin/defpackagemng" --get(vconsoleapp::run line 138)
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To correct this error, check permissions of the file
c:\windows\system32\cmd.exe

The user SYSTEM should be set to allow all permissions (it may be set on deny).