DISQUS

Randy · 1 year ago

Yes, I have CA Security and my gut feeling told me to simply change the extension to "zip" but sometimes I will get a corrupt file message after I've changed the extension, and I can't open the file. I didn't think to use "exe" so I'll try that the next time I get the corrupt file mssg.

'Cartney · 11 months ago

This worked for me(Disabling Firewall did not):

Open CA Security Center>Help(There is a 'drop down' arrow next to the help button. Select this and choose 'online support'. This will take you to their website). Choose 'Technical Support' then your CA product type. There should be a 'Search Knowledge Center' input box. Enter 'efw'. It will provide a couple options to try.

If you have a CA software version where the above path is bogus try copying and entering this into your browser:

http://home3.ca.com/Support/techsupport/techsup...

One option mentions to go to CA Firewall then select Email tab then turn off Email Protection. I downloaded an executable file after doing this and it still resulted in a EFW. The 'My Computer' option worked.

trika · 1 year ago

Hi,
I found your page after doing a search on the .efw extension. I have CA at work and file extensions started changing on me in the past few months (both incoming and outgoing) and I thought it might be CA but I wasn't sure. I had figured out that I could download the file and change the extension to .zip, but not all files were zip files. Plus, people I sent files to didn't know how to do that.

Thanks for posting this solution. I've made the changes to CA and hopefully won't have this problem anymore. :D

Silvia · 1 year ago

Thanks for your help.
I solve my problem! Thanks a lot!!!

Shelley Saunders · 1 year ago

My problem is slightly different. I wanted to download a program from Tech Republic. I downloaded it, and it had the extension .efw. So I saved it to my hard disk, then changed the extension to .zip, and I got a corrupt file message. I do have CA Security Suite (via RR), but don't see how that has any bearing on my problem, since the file I want to download is from Tech Republic. Could CA still be changing the extension before the download?

Daniel · 1 year ago

Hallelujah! Thanks a lot for this solution.

Daniel · 1 year ago

Oh, my problem was similar to Shelly's. I was downloading .RAR and .ZIP files from websites and they were coming up as .efw

KnightKnetwork · 1 year ago

I'm not sure how it works, it can certainly change the extension as you download and make it look like it was an .efw file the whole time. It's also possible that someone uploaded an .efw file accidently. Since .zip didn't work for you try .exe or .rar

Mike · 1 year ago

I downloaded the renewal update for CA and the file came in as an EFW file. I tried to change the extension to a .exe and then to a .zip file but neither changed it from an EFW. I have followed your instructions under Disable the quarantine above and hope that will work.

Rob · 1 year ago

I had the same promblem (If You Trust The Source) I found out, just disable CA firewall (Temp) and it will download the right File ext.. Lately I had Ca Firewall Enable (Don't No Why)but I been Downloading exe files,but strangely it would download a efw file. So much for Ca Firewall... I will leave it Disable...

Victoria aka CaliforniaQtee · 1 year ago

Thanks so much for the info-I chewed out a couple of game sites because all the sudden my downloaded files/games were "efw" files! Now, I feel I owe them an apology, lol...thanks again. :)

merk · 1 year ago

AWWWWESOME.... thanks man.
Up until this point I didn't even know what an EFW file was. Great job, and thanks again.

EILEEN · 1 year ago

THANKS SO MUCH! I SUCCESSFULLY CHANGED MY SETTINGS!

peter khan · 1 year ago

I was having problems to access a .zip file that was sent via email. The .zip file changed to .efw file type after download. I decided to search the .efw file because iI was familiar with it. Blessed I was when I stumbled on this site, read and follow the instuctions given, because I have CA, and it worked. Thank you very much, I just understand more about CA and .efw file types.

Sam · 1 year ago

I have RR, had EZ Armour but now RR change to CA Security Suite. I remember last time when I made some changes to EZ Armour mess up others, so your post is great and easy to understand the issue.
Thank You for taking the time to save me a headace.

STARS · 1 year ago

CA is one of the best PC and enthernet protecting programs. I have used NOD32 Anti-Virus all year long, never gimme a problem. Since I was decided to have some things new to learn I picked CA LOL:) the only thing bother me is ".EFW file" but, I find out to fix it in the first place. OohLala:) Here is my way to fix it.
1. Change the file to whatever, you downloaded zip, rar, tar, ...... if you remembered.
2. There is another way to handle this (efw file) Search around in google if you can fine (7ZIP) compression. Install and right click on "efw file" in your folder and extract it with (7ZIP) compression program. That's EZ and Good luck.

Ian · 1 year ago

I too got caught with the stupid efw file, and after doing what you said, was great. thanks

KnightKnetwork · 1 year ago

I'm glad I could help with those pesky efw files. The steps above should help you if you are trying to open or unzip an efw file, if you are just looking for an efw file opener then you'll need to follow step 1 above and open it after you've renamed it, chances are that you already have a program that can do the job!

jake · 1 year ago

Thanks a ton mate i couldnt figure out for the life of me what EFW was, did a quick search and found your post here http://forums.theplanet.com/index.php?showtopic... and followed it to this website, thanks again it rly heped!

911 · 1 year ago

The reason you get corrupted files after changing the filetype to something other than .efw is because you have no clue to what it should be. CA changes .exe, .rar, and .zip to .efw with no way to know what it originally was. If it originally was .zip, and you change it to .exe, it is no better than leaving it .efw, because Windows is trying execute a zipped file, and it won't work. If you change .efw to something else, you have only one chance in 3 of getting it right.

Changing the filetype to 'protect' you is an awfully bad idea. Changing it with no way to know what it should be is even worse.

nine_eleven · 1 year ago

There are about 2 dozen filetypes that CA converts to .efw. If you just try changing them to .zip or .rar, or .exe, you are still very likely to have an unusable file. Look in the "email attachments" tab for a list of the filetypes it blocks. My main problem with this is that they also block these from dowhnloads that are not Emails.

Richard · 1 year ago

Thank the lord for folk like yourself that share their knowledge to make our lives a lot easier. Keep up the support it is really appreciated. Thanks

Me · 1 year ago

Great post, It really help me. Thanks

JR · 1 year ago

Thanks, your info on the efw files is great! I would have never been able to fix the problem without you, sharing your vast knowledge. Again thanks!!!!!!!!!!!!!

Lorian · 1 year ago

Thank you thank you!

I figured it was the CA program but couldnt figure out how to get it to stop!

Darlene · 1 year ago

Thank you so much for this...I've had that same trouble with all downloads....and I have roadrunner to with CA....I thought that was when it started..but wasn't sure...thanks a bunch for the fix...

KnightKnetwork · 1 year ago

Happy to help! With all the Roadrunner .efw download file problems, you'd
think they would let you know it's a possibility before you install CA.

Bill · 1 year ago

I've sent a support question to CA fussing about this problem because it happened to me over night. This is one thing I found on the net that might be helpful. If you open the file with a text editor like notepad and look at the first 2 characters of the file you can salvage some info. If they are PK rename to ZIP, if they are MZ rename to EXE, if Rar! then RAR. These are the only ones I found. When I hear from CA I'll post again.

KnightKnetwork · 1 year ago

They don't seem to alter the file in anyway but renaming it so those headers
must be universal and not something related to CA. It would be good to know
which ones that CA looks for to do their renaming. Please do let me know
what you hear.

Bill · 1 year ago

CA sent me this link that pretty much follows what you said.

http://crm.my-etrust.com/CIDocument.asp?SimpleU...

They did not mention the use of a text editor to determine the original file type.

Thanks for your hard work!

KnightKnetwork · 1 year ago

Thanks for following up Bill. I found a few of the headers myself, but the
only one worth passing along is that an exe could also have 'ZM' as well as
'MZ'. Perhaps I'll code something up to make a best guess rename.

Clare · 10 months ago

THANK YOU. THIS ADVICE WORKED A TREAT.

Jessica · 10 months ago

This post was a huge help with a customer that was experiencing download problems due to CA antivirus. I was able to read the post to them on the phone & fix the problem in about 5 minutes.
Thank you so much. J

Raymond · 9 months ago

Thank you you help me I didn't no what to do !!!!!

matt · 9 months ago

Thank you SO much! This worked like a charm, and now i can start playing Pokemon on the computer again, lol =)

streetchemistry · 8 months ago

Thank you so much!!! This was very easy to follow, and quick to fix.

J Griff · 8 months ago

Thanks a bunch! Changing the email settings in my CA software fixed the problem.

KnightKnetwork · 7 months ago

Glad it helped!

Jay · 6 months ago

Thanks so much! I also have CA and for a quite awhile was baffled about these EFW files. I changed a folder full of downloads all to ZIP but was still having problems opening some of them. After reading a few of the posts I realised that I had changed some EXE and RAR files to ZIP.
I was please to find a little free downloadable program that allows you to change file extensions. http://www.leeos.com/rename_extensions.html
You can also add file extensions.

Thanks again, Jay

Tracey Lewis · 6 months ago

Thank You! Thank You! Thank You!
I just installed CA and did not know it would change my zip files. Your fix worked perfectly!!! Thanks a bunch! Tracey

Ebony · 5 months ago

SOOO HELPFUL...OMG THANK YOU!!!

Kristy · 5 months ago

Thank you! Thank you! Thank you!!!!!!

William Dean · 4 months ago

Very helpful. Thank you. I've been frustrated trying to open this .efw file, yet all these sites I've pulled up to help me only want to install new software for a "free" scan, then charge me for what may or may not be a remedy. I know where to come for advice from now on. Again, thank you.

Marty · 4 months ago

Thanks for the heads up. I was attempting to update my Advanced System Care 3 and the .efw file extension was attaching itself to my download. I changed the extension to .exe and voila...Everything is golden.

JnCali · 4 months ago

OMG Thank you sooo Much for this post! This helped me fix my problem. It is exactly what was happening to me. This helped tremendously and relieved the frustrations I was having!

Ikey · 4 months ago

Hey I'm having problems with my CA. I followed all the steps but when i click on the email attachments theres nothing there for me to scroll down....Are there any other options??

JamesPDX · 4 months ago

The files that I have downloaded had the .efw ext. I have already tried to rename these with the .zip , .tar, etc. without success. These files all have the same 404 KB size. (interesting: a 404 err msg is the file not found err.)

Your info on CA and the fix for e-mail attachments may be good, but what of the browser donwnloads? Can this be the same issue?

Thanks,
James

harlod427 · 3 months ago

since downloading ca on my comp, it takes forever to startup and then shuts down. roadrunner wans me to use my windows start up disc to fix this. if i do this i lose everything stored n my comp. they will not help me. what can i do?

Mary · 2 months ago

THANK you for solving my problem! Your step-by-step procedure to disable the .zip quarantine (which I didn't know existed) made it really simple to do. What a relief!!!

itstechnical · 2 months ago

Thank you for this tip! Saved me a lot of frustration!!!

Marco Murillo · 2 months ago

You're the man !!!.