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How can you completely uninstall STEP 7
How can you completely uninstall STEP 7
核心提示:How can you completely uninstall STEP 7 including all the software packages? Instructions:We recommend that you always uninstall all Siemens software and reinstall it after uninstalling STEP
How can you completely uninstall STEP 7 including all the software packages?

We recommend that you always uninstall all Siemens software and reinstall it after uninstalling STEP 7.

In the uninstallation described here the complete SIEMENS folder and all Registry entries of the Siemens software installed on your computer will be deleted. If there are still projects in this folder, then you must copy them to another directory in the SIMATIC Manager using the function"File > Save as...". You can also back up the data in another directory or on another drive using the function "File > Archive". You must not copy or move the projects in the Windows Explorer.
Furthermore, you should back up your GSD files from the directory "<<DRIVE:>>\Siemens\Step7\S7data\gsd\".

First transfer your authorizations to the authorization floppy disk provided for this.

Below is the procedure for complete uninstallation.

No. Procedure
1 In the Control Panel you open the "Software" dialog and select the "Add or Remove Programs" tab. Uninstall all the SIMATIC applications.

If it is not possible to uninstall STEP 7 in the dialog "Software" ("Add or Remove Programs") in the Control Panel, we recommend proceeding as follows. The reason for the behavior could be that the installation files are damaged, for example, so that the uninstall procedure is always aborted with an error message.

  • Open the Explorer and insert the STEP 7 CD in your CD drive.
  • Open the directory "<<CD-ROM drive>:\STEP7\Disk1" and mark the file SIMATIC STEP 7.msi".
  • Right-click and in the pop-up menu that opens execute the "Uninstall" function.

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Fig. 01

Your STEP 7 software is then uninstalled on your PC via the "SIMATIC STEP 7.msi" file.

2 Then restart the PG / PC.
3 Open the registry editor via the menu command "Start > Run...". Enter "regedit" and acknowledge with "OK". The Registration editor starts.

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Fig. 02

4 Open the "HKEY_CURRENT_USER > Software" directory. There you will find the subdirectory "SIEMENS". Select this subdirectory and delete it.

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Fig. 03

5 Open the "HKEY_LOCAL_MACHINE > SOFTWARE" directory. There again you will find the a "SIEMENS" directory. Select this directory and delete it. Then all the SIEMENS entries are deleted in the Registry.

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Fig. 04

6 Close the Registration editor and then delete the complete Siemens directory (<<DRIVE:>>\Siemens) and all the S7 files in the Windows system directory. For this you open the Search dialog via "Start > Search > All files and folders..." and search for all the "S7*.*" files.
7 Delete the SIMATIC folder in the Start menu.
8 Delete the "simatic.cfg" file that is located in the Windows directory (e.g. "System (C:).

In the new operating systems you might find that this file no longer exists anyway.

9 Delete the C:\RASETU*.* files.
10 Via "Start > Search > All files and folders..." you search for the file "citamis.str" in the Windows directory (e.g. "System (C:) ) and delete that file.
11 Now empty the recycle bin. Now uninstallation has been completed.

When you completely uninstall STEP 7 the complete Siemens directory is deleted. Located in this Siemens directory are also entries for other Siemens products like Logo-Soft, Soft Data Link (cell phone software) and Merlin (Siemens Standard Installation for Windows 98 and NT). Deleting these entries renders the software applications and the Siemens products useless.


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