Open the Windows and go to Programs and Features . Locate your version of SIMATIC STEP 7 or TIA Portal . Right-click the software and select Uninstall/Change .
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Navigate to: HKEY_USERS\ _Classes\VirtualStore (where matches your active Windows user profile). Delete the corresponding virtualized application keys. Reboot the computer. 2. Upgrade to STEP 7 V5.6 Service Pack 2 (SP2) cannot find language resource file s7yomlr.dll