when trying to open firefox I get an error message 0xc000001d
My computer has win XP and just updated firefox and now I cannot open the browser. Once I click to open I get the following message; the application failed to initialize properly (0xc000001d) Click on OK to terminate application
Chosen solution
Hello, Sorry about the problem you are facing.
SSE2 (Streaming SIMD Extensions 2), is one of the Intel SIMD (Single Instruction, Multiple Data) processor supplementary instruction sets.
http://www.cpuid.com/softwares/cpu-z.html Please download this software, it is called CPU-Z, this checks if you SSE2 is present in your system or not.
Also, please check the system requirements for Firefox 49.0.1 in the link below: https://www.mozilla.org/en-US/firefox/49.0.1/system-requirements/
If anyone of the requirements do not meet your system's, then i am afraid you cannot use Firefox 49.0.1 on your computer.
Please share a screenshot of the information given by CPU-Z for a better understanding of this problem.
If your system doesn't meet the requirements, do not worry, you can always download a previous version and use it. Please check out more on installing an older version here : https://support.mozilla.org/en-US/kb/install-older-version-of-firefox
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This is a Windows error when a file is damaged, however please consider seeing a computer technician if you are seeing this in multiple programs.
For Firefox, I can recommend a clean reinstall:
Certain Firefox problems can be solved by performing a Clean reinstall. This means you remove Firefox program files and then reinstall Firefox.
If this answer solved your problem, please take a moment to mark it as the chosen solution. If the problem still persists, please do let us know. Thank you :-)
This error message only happens with Firefox. I removed Firefox completely and reinstalled. Now I get a error message stating as follows;
Sorry, Firefox cannot be installed. This version of Firefox requires a processor with SSE2 support. Please click the ok button for additional information.
Chosen Solution
Hello, Sorry about the problem you are facing.
SSE2 (Streaming SIMD Extensions 2), is one of the Intel SIMD (Single Instruction, Multiple Data) processor supplementary instruction sets.
http://www.cpuid.com/softwares/cpu-z.html Please download this software, it is called CPU-Z, this checks if you SSE2 is present in your system or not.
Also, please check the system requirements for Firefox 49.0.1 in the link below: https://www.mozilla.org/en-US/firefox/49.0.1/system-requirements/
If anyone of the requirements do not meet your system's, then i am afraid you cannot use Firefox 49.0.1 on your computer.
Please share a screenshot of the information given by CPU-Z for a better understanding of this problem.
If your system doesn't meet the requirements, do not worry, you can always download a previous version and use it. Please check out more on installing an older version here : https://support.mozilla.org/en-US/kb/install-older-version-of-firefox
which security software are you using?
Downloaded the CPU software and its an AMD sempron3000+. Under instructions its has MMX(+), 3DNOW(+), SSE I downloaded version 48.2 and it works so we can safely assume that the version 49 is not compatible for this old but healthy computer. I have Avast antivirus software and could not get the latest version for it so I am presuming everyone is also not supporting XP or this old computer. It is a good computer (Compaq-presario) and wont die on me. In fact it works just as good as my newer one. Thank you.
Hello, Glad to know that your problem has been solved. It was a pleasure serving you. Thank you for the opportunity! Have a great day :-)