Windows 10: System.AccessViolationException: Attempted to read or write protected memory. This is often...

Discus and support System.AccessViolationException: Attempted to read or write protected memory. This is often... in Windows 10 Installation and Upgrade to solve the problem; when we try to switch tree view node. we are receiving following exception. Visual Studio 2017 Target Framework : 4.6.1 Windows 10 64bit Message:... Discussion in 'Windows 10 Installation and Upgrade' started by KarthikeyanBalasubramania, Feb 3, 2020.

  1. KARTHIKEYANBALASUBRAMANIA
    KarthikeyanBalasubramania Win User

    System.AccessViolationException: Attempted to read or write protected memory. This is often...


    when we try to switch tree view node. we are receiving following exception.


    Visual Studio 2017

    Target Framework : 4.6.1

    Windows 10 64bit


    Message:
    Attempted to read or write protected memory. This is often an indication that other memory is corrupt.

    stack trace:
    at System.Windows.Forms.UnsafeNativeMethods.CallWindowProcIntPtr wndProc, IntPtr hWnd, Int32 msg, IntPtr wParam, IntPtr lParam
    at System.Windows.Forms.NativeWindow.DefWndProcMessage& m
    at System.Windows.Forms.TreeView.WmMouseDownMessage& m, MouseButtons button, Int32 clicks
    at System.Windows.Forms.TreeView.WndProcMessage& m
    at System.Windows.Forms.NativeWindow.DebuggableCallbackIntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam
    at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageWMSG& msg
    at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoopIntPtr dwComponentID, Int32 reason, Int32 pvLoopData
    at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInnerInt32 reason, ApplicationContext context
    at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInt32 reason, ApplicationContext context

    :)
     
    KarthikeyanBalasubramania, Feb 3, 2020
    #1
  2. FERNANDZ
    Fernandz Win User

    How To Format A Write Protected Flash Memory ?

    ¿You already tried this one?...

    Run CMD


    1. diskpart
    2. list disk

    Then in the 3º step, put the correct number of disk in the list for the usb flash (if it's listed in disk 3, then you'll have to write select disk 3).

    2. select disk #
    3. clean
    4. create partition primary
    5. select partition 1
    6. active
    7. format fs=fat32
    8. assign
    9. exit

    with that commands you will format the flash drive in fat32, if you have a large drive you can select also "format fs=ntfs" in step 7.

    good luck!
     
    Fernandz, Feb 3, 2020
    #2
  3. FEDUPFREDDIE
    fedupfreddie Win User
    Write to read only memory


    I have had two BSODs this morning, the first was PFN list corrupt closely followed by Write to read only memory.

    This is a clean install of Windows 10, I thought it might cure the BSODs but no such luck. So glad to find this forum.

    Attachment 82075
     
    fedupfreddie, Feb 3, 2020
    #3
  4. KINGDANGO
    kingdango Win User

    System.AccessViolationException: Attempted to read or write protected memory. This is often...

    BSoD During Windows 10 Factory USB install, attempted write to read only memory (WimFsf.sys)

    I purchased a Windows 10 Home Edition OEM USB Installation kit (factory USB-based install). During the "Enter your license key" step of the install a blue screen of death (BSoD) is displayed and a page access fault is described as the culprit.

    Attempted write to read only memory (WimFsf.sys)

    This is a brand new build with top-end hardware (ASUS board, i7 GPU, ASUS GPU, Crucial memory, Samsung SSD). I have tried numerous bios tweaks, swapped the SSD, removed one of the sticks of RAM (thinking it might be RAM related) all to no avail.
     
    kingdango, Feb 3, 2020
    #4
Thema:

System.AccessViolationException: Attempted to read or write protected memory. This is often...

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