I have to reinstall a program for my work, what is annoying is that: I come across the error message "This application failed to start because optix.1.dll was not found. Re-installing the application may fix this problem." I've downloaded the optix.1.dll zip file I need from internet. Nothing happened. One problem is I'm not sure if I have done the right thing to fix this error. Anyone can help me? Thanks.                                                                                                                             

The answer is absolutely yes. It is possible to fix optix.1.dll if you have tried the below method.

What is optix.1.dll?

optix.1.dll error messages might appear while using or installing certain programs, when Windows starts or shuts down, or maybe even during a Windows installation.

Method One: Fix optix.1.dll with an Effective way!

Step One: Free Download SmartPCFixer!
Step Two: Run this tool and click "System Fix", then choose "Dll Download".
Step Three: Type your missing optix.1.dll files and click "Search", Then download the files and use SmartPCFixer to register it for you.

Method Two: Troubleshoot optix.1.dll Error Manually.

Step One: Download optix.1.dll Files from SmartPCFixer.
Step Two: Extract the downloaded file to the program folder that the optix.1.dll file is missing. Restart your computer and see if it works.
Step Three: If the optix.1.dll missing error still persists, I recommend you run a SFC. In most cases, SFC will find out the damaged optix.1.dll system files for you, and fix it with ease.

Besides, a newly installed program might be the main reasion of optix.1.dll missing error. Once you uninstalled the software, optix.1.dll issues will be solved with ease. Before uninstalling the program, do a clean boot for your PC is highly recommended!

How to clean your computer (win7 or vista)

1. Log on to the computer by using an account that has administrator rights.

2. Click Start, type msconfig.exe in the Start Search box, and then press Enter to start the System Configuration utility.


Note: If you are prompted for an administrator password or for confirmation, you should type the password or provide confirmation.

3. On the General tab, click the Selective startup option, and then click to clear the Load startup items check box. (The Use Original Boot.ini check box is unavailable.)

4. On the Services tab, click to select the Hide all Microsoft services check box, and then click Disable all.


Note This step lets Microsoft services continue to run. These services include Networking, Plug and Play, Event Logging, Error Reporting, and other services. If you disable these services, you may permanently delete all restore points. Do not do this if you want to use the System Restore utility together with existing restore points.

5. Click OK, and then click Restart.

Reference: http://support.microsoft.com/kb/929135/en-us

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