dwg has become damaged or corrupt

[thomashubba19]

My AutoCAD drawing file (. dwg) has become damaged or corrupt… File will not open. How fix it?

[craigrobert73]

1.Open a blank DWG and run the RECOVER command. Select the problematic file. AutoCAD will attempt to recover the file and open it.
2.Open a blank DWG and run the RECOVERALL command. Select the problematic file. AutoCAD will attempt to recover the file and open it.
3.Open a blank DWG and run the INSERT command. Select the problematic file and see if it will insert. If it does, then run EXPLODE and select the inserted block. Run AUDIT and PURGE commands, and then use SAVEAS to create a new DWG.
4.Look in the same directory where the DWG resides and see if there is a BAK file of the same name. If so, rename the BAK extension to DWG and see if the file can then be opened.
5.Look in C:\Windows\Temp for files with an SV$ extension. If any exist with a similar name to the corrupted DWG file, then rename the extension to DWG and see if it can then be opened.
6.Go to your backup system and restore the file from a time before it became corrupted.

Or:
DWG Repair Kit
This professional AutoCAD DWG repair tool features a uniquely efficient data analysis core and an interface that both professionals and novices with appreciate. The program will show you how to repair DWG files online in seconds even if you have never worked with data recovery tools of any sort!
For more information: http://www.dwg.repair/

Also look here: https://social.technet.microsoft.com...itproappcompat