delete I[i];
가 아니라

delete [] I; 으로 하셔야 할 듯..

아니 그런데 I[100000] 이나 되는데 다 new로 assign 되지는 않을 것 같고,,,,

for(int i = 0; i < 100000; i++)
{
    if( I[i] != NULL)
        delete I[i];
}

가 되어야 할 듯요.

ㅋㅊㅌㅍㅌㅋㅊㅍㅌㅍ 님이 쓰신 글 :
: 이렇게해서 NULL값 넣어주는데도... 에러가뜨네요.. 방법좀알려주세요
:
:
: //---------------------------------------------------------------------------
:
: #include <vcl.h>
: #pragma hdrstop
:
: #include "Unit1.h"
: TImage *I[100000];
: AnsiString a;
: int X=0;
: int i=0;
: TButton* cls;
: //---------------------------------------------------------------------------
: #pragma package(smart_init)
: #pragma resource "*.dfm"
: TForm1 *Form1;
: //---------------------------------------------------------------------------
: __fastcall TForm1::TForm1(TComponent* Owner)
:     : TForm(Owner)
: {
: }
: //---------------------------------------------------------------------------
:
: void __fastcall TForm1::Button1Click(TObject *Sender)
: {
:     I[X] = new TImage(this);
:     I[X]->Name = String("Imgcnd_") + X  + String("_");
:     I[X]->Width = 189;
:     I[X]->Height = 91;
:     I[X]->Stretch = true;
:     I[X]->AutoSize = false;
:     I[X]->Visible = true;
:     I[X]->Parent = Form1;
:     I[X]->Picture->LoadFromFile("C:\\동현프로그램\\이미지\\순서도-선언.bmp");
:     I[X]->Left = X;
:     I[X]->Top = 0;
:     I[X]->Transparent = true;
:
:     X++;
: }
: //---------------------------------------------------------------------------
:
:
: void __fastcall TForm1::Button3Click(TObject *Sender)
: {
:     int i = 0;
:
:     delete Form1;
:     delete I[i];
:
:     for(int i = 0; i < 5; i++)
:     {
:             I[i]=NULL;
:     }
:
:     X = 0;
:
:     Application->CreateForm(__classid(TForm1), &Form1);
:     Form1->Show();
: }
: //---------------------------------------------------------------------------