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Autocad Corrupt / Invalid File

Hi,
I am facing an issue that most of our autocad 2007 drawings are getting corrupted or invalid file which accessing it after few days.

I have tried all the required solution mentioned on the google and here and there techie sites but to no help i even renewed my subscription in order to see the solution here in EE but to no help i need your help please.
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navedj786
Asked:
navedj786
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1 Solution
 
lobo797Commented:
You've probably been through this post, but something is corrupting the files.  I'm thinking it's a third-party app or some other program that is corrupting the files.  

Is there other apps that you use to work with the cad drawings?

http://autodesk.blogs.com/between_the_lines/2004/01/helpful_autocad.html

All the best..
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borgunitCommented:
Just to make sure, check if you are not saving as a newer version and then trying to open with a lower version of AutoCAD. AutoCAD 2007,2008,2009 can open each other but AutoCAD 2020 files cannot be opened in lower versions.
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victorusCommented:
Save file(s) where you normally save them but then do a SAVEAS and save the same file(s) to your local C: drive. Then when you have a corruption check to see if the same file on your C: drive has the same problem. If NOT then you probably have a network problem that is not associated with AutoCAD at all.
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navedj786Author Commented:
none of this is the case i use the same autocad version to open the same file and it's saved at my local drive but still it's the same thing that it corrupts / invalid file
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victorusCommented:
You need to determine if there is a problem with the integrity of your C: drive then. Do your regular save abs then a SAVEAS to a flash drive. Do this for all of the drawings that you are working on. If a drawing goes corrupt on your C: but is good on the flash then you may have some bad sectors on your C: drive. If both files go corrupt then you have an AutoCAD problem.
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borgunitCommented:
Another check...Are you running the latest Service Pack for 2007? It goes up to service pack 2 I believe.

http://usa.autodesk.com/adsk/servlet/ps/dl/index?siteID=123112&id=2334435&linkID=9240618#section5
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navedj786Author Commented:
No solution yet it's not the problem with the shared drive however I created the file again
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victorusCommented:
Do you get the same corruption when you save to your C: drive that you get when you save to a flash drive?
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navedj786Author Commented:
As I told I tried everything and It was the problem with autocad and there is a antivirus only for autocad cadvirus from Korea it also help as some sort
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navedj786Author Commented:
As I told I tried everything and It was the problem with autocad and there is a antivirus only for autocad cadvirus from Korea it also help as some sort
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gikkelCommented:
Perform a fresh installation of autocad.  Completely uninstall and reinstall...it usually gets rid of most problems.  
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navedj786Author Commented:
I already did it long back
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silverkornCommented:
did you try an audit and purge in the drawing? If not i would suggest the audit (keyin: audit) and select y to fix the problems, once that completes then purge (keyin: purge) and purge everything from the drawing. Once that has completed save the drawing and reopen to see if you continue to get the same problems

If this still doesnt work you can try two more things:

1) block out everything from your current drawing into a new drawing. To do this keyin WBLOCK from the model tab in the drawing. Make sure to have the source as 'Objects' and then in the 'Object' section click the 'Select Objects' button and select everything in your drawing. Change the units at the bottom to unit less and give it a new filename.

2) Export the file into a 2000 or R14 format file. To do this goto File -> 'Export to AutoCAD' -> '2000 Format' this will save the drawing in a 2000 format dwg.
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navedj786Author Commented:
The file was burst after accessing due to the LSP which were getting recoded by the virus and after running the cad virus it helps you to restablize the file and access the Cad files normally.
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