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# Click on '''Windows Start button''', then '''Run''' and type '''Regedit'''. Press '''Enter'''.
# In the Registry open the path: '''HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\FileSystem'''
# Change the value of the '''NtfsDisable8dot3NameCreation''' key to '''0'''.
# Reboot the operation system.
# After the system is rebooted, follow the guide according to your MultiCharts version.
[[What is my MultiCharts User ID|Please make sure your MultiCharts version is '''8.8 or any newer version''']]. If it is not, please [http://www.multicharts.com/trading-software-download/| update MC software] using the following guide:
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<div style="background-color: #ffc0cb;">'''Windows Vista ''' users: please make sure that you have all the latest Windows updates and Service Packs installed before following this guide. </div> The error takes place when Windows was upgraded or Windows updates were installed and is usually resolved if you simply do the following:
# Close all MultiCharts products and make sure all [[MultiCharts Processes]] are finished in Windows Task Manager.
# Uninstall MultiCharts from your computer:
#* Windows '''Start'''
#* Open '''Control Panel'''#* Select '''Uninstall a program'''#* Find '''MultiCharts'''#* Select '''Uninstall'''#* Click '''Next'''#* Click '''Remove'''#* Do '''NOT''' check the box "Remove MultiCharts user data from computer", leave it clear.#* Click '''Remove'''#* After the uninstall processes is completed click the '''Finish''' button.# Please install Install MultiCharts again, using a different , '''short''' directory:
#* If you don't have the installer saved on your local drive, please [http://www.multicharts.com/trading-software-download/| download the latest release or beta version]
#* Click '''Install'''
#* Click '''Next'''
#* Click '''Change'''
#* Change the folder name to '''C:\MC''' or '''C:\MC64''' and click '''OkOK'''
#* Click '''Next'''
#* After the installation processes is over , click '''Finish''' button.<br>----<br>In case the error still appears, it means that there is an issue with short paths.To resolve it, please:# Close all MultiCharts products and make sure all [[MultiCharts Processes]] are finished in Windows Task Manager.# Click on '''Windows Start button''', then '''Run''' and type '''Regedit'''. Press '''Enter'''.# In the Registry open the path: '''HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\FileSystem'''# Change the value of the '''NtfsDisable8dot3NameCreation''' key to '''0'''.# Reboot the operation system. After the system is rebooted, # '''Launch MultiCharts''' by '''right-click on its icon''' and selecting '''Run as administrator''' (''if you don't have this option, use regular double-click'').
# In MultiCharts, go to '''File''' menu and select '''Preferences'''.
# On the '''Directories''' tab change the directory of the folder with your studies by clicking the '''...''' button for '''Studies''' (remember the old path). It is important to use a simple path. We recommend creating '''C:\MyStudies'''.
# Restart MultiCharts.
<br>
----<br>If your MultiCharts version is '''below 8.8 ''' and you are unable to update please follow these instructions:
# Open the '''compiler_error.log file'''. Depending on what path is written in the file you will have to rename several folders in one of 2 possible locations:
:* '''C:\ProgramData\TS Support\...''' (example for Windows 7/8); '''C:\Documents and Settings\All Users\Application Data\TS Support\...''' (example for Windows XP)
<br>
Run PowerLanguage, create a new study (any type) and try to compile it. It should be compiled without any errors. If the issue persists, please contact our support team in [[http://messenger.providesupport.com/messenger/tssupport.html| Live Chat]].
[[Category:FAQ]]
