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The error might appear after Windows upgrades/updates. To resolve it, please follow these steps:<br>
# Restart your PC
# Go to the '''Windows Start''' menu -> → '''Settings''' (gear icon) -> → '''Apps''' # Select MultiCharts -> → click Uninstall -> → in the Setup Wizard click Next -> → '''Repair'''If the issue is not resolved after the repair, please [https://www.multicharts.com/support/ contact support] or try the steps below.
== Reinstalling MultiCharts ==
# Close all MultiCharts products and make sure all [[MultiCharts Processes]] are finished in Windows Task Manager.
# Uninstall MultiCharts from your computer:
#* Go to the '''Windows Start''' menu -> → '''Settings''' (gear icon) -> → '''Apps''' #* Select MultiCharts -> → click Uninstall -> → in the Setup Wizard click Next → '''Remove'''<div style="background-color: #dd9914;"> '''RemoveNote: '''#* Do '''NOT''' check the "Remove MultiCharts user data from computer" box, leave it clear.</div>
#* Click '''Remove'''
#* After the uninstall processes is completed complet click the '''Finish''' button.
# Install MultiCharts again, using a different, '''short''' directory:
#* If you don't have Download the installer saved on your local drive, please <br>[https://www.multicharts.com/download/ '''MultiCharts''']<br>[https://www.multicharts.com/net/ download the latest release or beta version/ '''MultiCharts .NET''']#* Launch the installer and click '''Install'''#* In → in the Setup Wizard click '''Next''' #* Check → check the "''I accept the terms in the License Agreement''" box and click '''Next'''#* Click → click '''Next''' in the What's new window
#* In the Destination Folder window click '''Change'''
#* Change the folder name to '''C:\MC''' or '''C:\MC64''' and click '''OK'''#* Click and '''Next'''#* After the installation processes is over, click '''Finish''' button.
== Short paths ==
#'''Launch MultiCharts''': '''right-click the shortcut''' -> '''Run as administrator''' (''if you don't have this option, use regular double-click'').
# In MultiCharts go to '''File''' -> '''Preferences'''.
# In the '''Misc''' tab change the Studies directory: click the '''...''' button for '''Studies''' (remember the old path). It is important to use a simple path. We recommend creating '''C:\MyStudies'''.<div style="background-color: #E3FBE5;">'''Note:''' The Permissions for this new folder should be set to '''Full Control''' for all users that will access this folder in the PowerLanguage Editor. </div>
# Close MultiCharts.
# Make sure all [[MultiCharts Processes]] are ended in the Windows Task Manager.
# In the opened window, change Variable Value to '''C:\Windows\Temp''' and click OK.
<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]]
