TOWeb doesn't start or stays frozen

Important if you are using Windows 10/11

Following an installation of TOWeb (including an update) your Windows 10/11 may no longer fully authorize the application without notifying you. In such a case, this generally manifests itself in TOWeb with one or more issues like for instance:
- the application no longer starts or may even crash
- malfunctions in the use of the software with for example empty control areas or all grayed out preventing any modification of your site
- the publication of your site no longer works.
In the event of an anomaly of this type, you will need to (re)authorize TOWeb by following the Microsoft procedure explaining how to allow TOWeb to access controlled folders of your Windows 10/11 system.

Using Windows 7/8/10/11

If some feature of TOWeb (like publishing on the Internet) are not working or TOWeb does not start at all then check all the following advice :

  • Verify first that you have installed the latest update of TOWeb and if your installation is corrupted then delete the temporary internet files of your web browser before to download it again and proceed to a new installation
  • If TOWeb still doesn't start or if some Internet action are blocked (like for instance when publishing your website or trying to contact our support from TOWeb) this is generally due to your Windows firewall and/or a Internet security software installed on your computer (Norton, Kaspersky, ...) and/or your antivirus. You may try to temporary deactivate these security protections to determine which ones are not fully authorizing TOWeb on your machine. For more information read the documentation of your security protection to find out how to reset the default options and manually add TOWeb to the lists of exceptions. Under Windows 10 & 11 you need to do it from:
    "Start  > Settings  > Privacy & security  > Virus & threat protection > Exclusions".
    The "TOWeb.exe" file of TOWeb V12 to manually add and authorize on your computer is located in "C:\Program Files\Lauyan\TOWeb V12". After TOWeb is reauthorized, reboot your computer before to restart TOWeb
  • Use the Microsoft Windows Update to download and install the latest updates available for your Windows version
  • Make sure not to store the data files of your site(s) into a cloud (such as Google Drive, Dropbox, iCloud or OneDrive). The data of your site(s) are by default placed in the "My Documents\TOWeb Sites" folder of your computer but should not be moved in a synchronized folder as this could cause TOWeb crashes and corrupt your site data.
For computer using Window 7, Windows 8, Windows 10 or Windows 11 you may check the following points too :
  • Right-click on your Computer icon located on your desktop (or accessible in a Windows Explorer window) and select the Advanced system settings", then click on the "Performance settings" and select the data prevention option for Windows' programs and services only
  • Make sure TOWeb is running with correct access rights. Make a right-click on the TOWeb icon located in your Windows Desktop an from the menu select "Run as administrator"
  • Verify that you turned off the user account control (UAC) from the control panel.
On some computers, Windows 10 may be installed by default in S mode (like Security). This mode prevents any installation of software that is not part of the Microsoft Store, which excludes many software such as TOWeb but also other browsers than Microsoft Edge (such as Chrome or Firefox) and many free tools (touch-ups of images for example) useful for the realization of your websites.
To switch from "Windows 10 S" to "Full Windows 10" for free, do the following:
  • Click the Start Menu> Settings> Update & Security> Activation
  • Find the Switch to Windows 10 Home section, then select the Go to Store link
  • Once in the Microsoft Store, on the Cancel Switching to S Mode page, click the "Get" button.
You may also want to verify that the crash or blocking issue(s) you are experiencing are not caused by Windows Defender by doing the following:
  • open Windows Defender
  • go to "Protection against viruses and threats"
  • click on "Protection against RanSomeWare"
  • click on "Manage protection against RanSomeWare" and deactivate this function
  • then restart the computer to verify that TOWeb now works correctly.

Using Mac OS X 10.9 or higher

If TOWeb does not start or if you seen a security message about an "unidentified developer" then, do a right-click on the TOWeb icon (located in your Applications folder) and select "Open" from the contextual menu. This will force TOWeb to open correctly without displaying any alert thereafter.


  • TOWeb V7-V12 require at least MacOS 10.9 (Mavericks) and works with MacOS 10.15 (Catalina) for versions 8.10 and 7.24
  • TOWeb V5 and V6 are compatible with MacOS X from version 10.6 (Snow Leopard) to version 10.14 (Mojave) but are not compatible with MacOS 10.15 (Catalina)
TOWeb is designed to work with data located locally in the "Documents" directory of your computer but not will not work correctly (if at all) if you place them elsewhere, especially on a network drive such as OneDrive, Dropbox or your iCloud Drive. To turn off syncing on your iCloud Drive, follow these steps:
  • From your Mac, choose "Apple menu > System Preferences". Click "Apple ID", then click "iCloud". On macOS Mojave or earlier, choose "Apple menu > System Preferences", then click "iCloud".
  • Next to iCloud Drive, click Options.
  • Deselect Desktop & Documents Folders, and click Done.
  • Then once this disconnection is made, your local directory does not contain what you had on the iCloud Drive, you will need manually copy the "TOWeb Sites" directory from iCloud Drive to your "Documents" directory in order to retrieve the latest version of your site (or your sites if you have several).
If TOWeb still can not start then try to disable SIP by doing the following:
  • Restart your computer in Recovery mode by pressing the ⌘ et R keys
  • Launch Terminal from the Utilities menu.
  • Run the command: csrutil disable
  • Restart your computer

Site disappeared and TOWeb starts to create a new one

By default TOWeb stores all your sites data into the "My Documents" directory of the current Windows user. If at the start of TOWeb you can not find your sites and/or if TOWeb starts by asking you to create a new site then it can come from any of the following causes :

  • You have changed your computer. In this case it is normal that you can not find data from your sites as they are in the folder "My Documents" of your old computer. To have them back present on your new computer you need a backup and follow the restore procedure.
  • You are logged on Windows under a different user account than the one you used when you created your site. As the "My Documents" directory is personal to each Windows user account you must log into Windows using your previous user account to have access to your data.
  • A security software (like an Antivirus for example) may no longer allow TOWeb the access to folder "My Documents". Such a case occurred in the past especially with Free antivirus, TOWeb should normally detect and notify you about such a problem at startup. In such a situation check your security software (including Anti-Virus) installed on your computer to identify the third party software causing this problem, disable your security software one by one and restart TOWeb each time to see when it works. Eventually you may also try to uninstall your antivirus. If by uninstalling your antivirus TOWeb works then we recommend you consult its documentation or contact its technical support contact before reinstalling your antivirus or you may want to use another anti-virus that will not affect the proper functioning of your system/applications such as for instance the free anti-virus software Microsoft Security Essential.
  • You or any third party software have changed the location of the "My Documents" directory. Again security software or system tools may be involved, so check out this point by following the above procedure (disabling software one by one until you identify the one causing trouble).

As a last resort, if none of the solutions proposed above does not work, open a Windows file explorer to search for multiples "TOWeb Sites" directories on your hard drive and there after use the browse button to open your site. Finally you may also consider at last to restore a backup.

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