Recovering from a failed installation
It is unlikely that you will need to recover from a failed installation. However, some failures, such as out of disk space, will require this cleanup and reinstall.
Oracle
1. Start the Services Manager.
a. Go to your computer's Control Panel.
b. Double-click Administrative Tools.
c. Double-click Services.
2. Stop all Creo Elements/Direct services.
3. Stop the OracleServiceSID.
4. Delete the database.
a. Choose Start > Programs > Oracle > Oradb11g_home1 > Configuration and Migration Tools > Database Configuration Assistant.
b. Follow the instructions to delete a database.
5. Delete classes.* from \Program Files\PTC\Creo Elements\Direct Manager Server 20.5\db_files.
6. Delete files from your SID from the \oracle\product\11.0.1\oradata\SID directory.
7. Run the Creo Elements/Direct Manager Server installation.
SID refers to the instance name you selected for your Oracle instance, which is usually WM.
SQL Server 2019
1. Choose Start > Programs > Microsoft SQL Server 2019 > SQL Server Management Studio.
2. Delete the database.
a. In the Object Explorer, locate the database under Databases (usually WM).
b. Right-click the database and choose Delete.
3. Delete the medmgr user from SQL Server 2019.
a. Expand Security.
b. Expand Logins.
c. Locate the medmgr user.
d. Right-click medmgr and choose Delete.
4. Delete classes.* from \Program Files\PTC\Creo Elements\Direct Manager Server 20.5\db_files.
5. Run the Creo Elements/Direct Manager Server installation.
* 
The SQL Server Express 2019 installer that is bundled with Manager Server installer, checks for pending computer restart. It may cause the setup to fail. To avoid this, you must check the prerequisite and restart the computer before you install SQL Server.
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