问题
I have been trying to install sql server 2008 r2 at my local machine and at the end of the installation i got this error "Wait on the database engine recovery handle failed". The Wizard shows progress in which some of the components including Database Engine could be not be installed. I need some help related to this.
回答1:
This issue can pop up for a few different scenarios. Do check the logs for error.
One of the scenario when this error can occur if a Microsoft® system folder is either missing or lacking the correct permissions.
Please use the following steps:
1.Click the Windows® Start button and click Run.
2.Type %appdata% and click OK.
3.Browse to the Microsoft folder.
4.Locate the Protect folder to assign the correct permissions:
Note: If the Protect folder is missing from the Microsoft folder, you will need to create it in this location by right-clicking and selecting Folder. Ensure to name the folder "Protect."
1.Right-click on the Protect folder and select Properties.
2.Click on the Security tab. Ensure the System and your logged on Windows User account is listed and both have Full Control.
3.Click Add to begin adding the accounts. For Windows Vista®/Windows 7, you will need to click Edit first.
4.In the "Enter the object names to select" box, type the word System, and press Enter on your keyboard. The System account should be listed now. Select System from the user names list and select Full Control under the Allow column. Click Apply .
5.Follow steps 3-4 to find, add and assign Full Control permissions also for you logged on Windows User account.
6.Click OK
.
Attempt to install SQL Server 2008 R2.
Even if this does not solve your problem, you take a look at the msdn blog that provides a workaround for the install scenario and see if this fixes it?
来源：https://stackoverflow.com/questions/12195300/wait-on-the-database-engine-recovery-handle-failed