Introduction
Losing hours of work because AutoCAD suddenly crashes, your computer shuts down, or a power outage occurs can be frustrating. Fortunately, AutoCAD includes an Autosave feature designed to help protect your work by automatically creating temporary copies of drawings while you work.
However, many users do not know where AutoCAD autosaves files or how to locate these files when they need to recover a drawing. In fact, an autosave file is not normally stored alongside your regular .dwg file. Instead, AutoCAD creates a temporary file with an .sv$ extension in the designated Automatic Save File Location.
Therefore, understanding where AutoCAD autosaves your work can make the difference between losing an unfinished drawing and recovering most of your recent work.
In this guide, we will explain where AutoCAD autosaves, how to find the autosave folder, how to change its location, and how to recover an .sv$ file when something goes wrong.
What Is AutoCAD Autosave?
AutoCAD Autosave is a feature that automatically creates a temporary copy of a drawing at specified intervals while you work. The purpose is to provide a recovery option if AutoCAD or your computer stops unexpectedly.
By default, AutoCAD’s automatic save feature is enabled and is set to save approximately every 10 minutes. The interval can, however, be changed according to your preference using the SAVETIME system variable or the settings in the Options dialog box.
It is important to understand that Autosave does not replace your normal Save command. Instead, AutoCAD creates a temporary .sv$ file containing the drawing information available at the most recent autosave.
For example, imagine that you have been working on a floor plan for 25 minutes and AutoCAD is configured to autosave every 10 minutes. If the software crashes shortly afterward, the autosave file may contain your work up to the most recent autosave rather than every change you made immediately before the crash.
Therefore, Autosave should be viewed as a safety net, not a replacement for regularly saving your drawing.
Where Do AutoCAD Autosave Files?
On Windows, AutoCAD normally stores automatic save files in the system’s temporary folder. The exact location can vary depending on your system configuration, but AutoCAD provides a setting called Automatic Save File Location that tells you exactly where the files are being stored.
The autosave files normally have the extension:
.sv$
For example: MyBuildingPlan_1_12345_abcdef.sv$
The name may contain the original drawing name together with additional characters or numbers.
Unlike your regular .dwg file, the .sv$ file is a temporary recovery file. When AutoCAD closes normally and the drawing is saved or closed appropriately, the temporary autosave file is generally removed.
However, when AutoCAD crashes or terminates unexpectedly, an autosave file may remain available for recovery.
Where Is the AutoCAD Autosave Location on Windows?
If you are using AutoCAD on Windows, the default autosave location is generally associated with the Windows Temp folder.
One quick way to access the temporary folder is to open File Explorer and enter %TEMP% in the address bar.
You can also type %TEMP% into the Windows Start menu and open the resulting folder. Autodesk identifies the Windows Temp folder as the default location for AutoCAD’s automatic save files.
However, keep in mind that the autosave location may have been changed by the user or by an organization’s AutoCAD configuration. Therefore, checking AutoCAD’s Automatic Save File Location is the more reliable approach.
Where Is AutoCAD Autosave on Mac?
On macOS, the default location is different. Autodesk currently identifies the default location as:
/Users/<username>/Documents/Autodesk/Autosave
The location can also be checked through AutoCAD’s application preferences.
How to Find the AutoCAD Autosave Location
If you want to know exactly where AutoCAD autosaves your files, you can check the location directly inside AutoCAD.
Follow these steps:
1: Open AutoCAD
2: Open the Options dialog box
3: Go to the Files tab
4: Find Automatic Save File Location
Look for:
Automatic Save File Location
Expand this option to see the folder path currently being used by AutoCAD.
Autodesk also provides the SAVEFILEPATH system variable, which specifies the directory being used for automatic save files.
Step 5: Open the folder
Once you know the path, navigate to that folder using Windows File Explorer.
You should then be able to look for .sv$ files if an autosave file is available.
Pro Tip: If you are trying to recover a drawing after a crash, search for .sv$ files and look for one with a name that corresponds to your drawing.
Should You Change the Autosave Location?
Changing the location can be useful, particularly if you have a reliable backup folder or an organizational storage system.
However, you should be careful when selecting a network or cloud-based location. Autodesk notes that storing autosave files on a network location can increase the time required for AutoCAD to perform an autosave.
For many users, a reliable local folder combined with a proper backup strategy is a practical approach.
How to Recover an AutoCAD Drawing From an Autosave File
One of the main reasons people search for where AutoCAD autosaves is because AutoCAD has crashed and they need to recover their work.
Fortunately, there are several ways to approach the recovery process.
Method 1: Use Drawing Recovery Manager
After an unexpected crash, AutoCAD may provide access to the Drawing Recovery Manager.
The Drawing Recovery Manager can display available recovery files associated with drawings that were active during the crashed session. This makes it easier to recover your work without manually searching through temporary folders.
This is generally the easiest method when the recovery manager is available.
Method 2: Locate the SV$ File Manually
If you cannot recover the drawing through Drawing Recovery Manager, you can locate the autosave file manually.
First, navigate to your Automatic Save File Location.
Next, look for a file with the .sv$ extension.
Once you identify the appropriate file, make a copy of it before changing anything. This gives you a backup of the original recovery file.
Then change the extension from .sv$ to .dwg
For example:
SitePlan_1_12345.sv$
becomes:
SitePlan_1_12345.dwg
You can then try opening the renamed file in AutoCAD. Autodesk specifically recommends this process for recovering data from an autosave file.
Important: Make sure Windows is displaying file extensions before attempting to rename the file. Otherwise, you may accidentally create a file such as drawing.sv$.dwg instead of actually changing the extension.
What Is an AutoCAD SV$ File?
An SV$ file is an automatic save file created by AutoCAD.
It is essentially a temporary recovery file that stores drawing information from an autosave operation. Unlike a normal AutoCAD drawing, however, it uses the .sv$ extension.
It is important not to confuse the SV$ file with a normal DWG file.
| File Type | Extension | Main Purpose |
| Drawing | .dwg | Main AutoCAD drawing |
| Backup | .bak | Previous saved version |
| Autosave | .sv$ | Temporary recovery copy |
| Temporary | .ac$ | Temporary AutoCAD file |
An SV$ file is particularly useful when AutoCAD crashes before you have manually saved your latest changes.
Tips for Managing AutoCAD Autosave Files
1. Do not rely entirely on Autosave
Autosave is useful, but it should not replace manually saving your work.
Use Ctrl + S regularly, particularly after completing an important stage of your drawing.
2. Keep Autosave enabled
Unless you have a specific reason to disable it, keeping Autosave enabled gives you an additional layer of protection.
Setting SAVETIME to 0 disables automatic saving, meaning AutoCAD will not create .sv$ files for recovery.
3. Know your autosave location
Don’t wait until AutoCAD crashes before learning where your recovery files are stored.
Checking the Automatic Save File Location in advance can save valuable time during an emergency.
4. Keep regular backups
Autosave is only one part of a good file-management strategy.
For important projects, maintain additional copies of your DWG files using an appropriate backup system.
5. Save before major changes
Before making substantial modifications to a drawing, save your current version.
For example, if you are about to modify a complex site plan, creating a separate version can make it easier to return to the earlier state if something goes wrong.
Conclusion
Knowing where AutoCAD autosaves is an important part of protecting your design work. Although AutoCAD’s Autosave feature operates in the background, understanding how it works can help you respond quickly when the unexpected happens.
On Windows, automatic save files are normally stored in the system Temp folder, although the exact location can be checked through Options > Files > Automatic Save File Location. These files typically use the .sv$ extension and can potentially be used to recover work after an unexpected crash.
Nevertheless, Autosave should not be considered a replacement for manually saving and backing up important drawings. Instead, think of it as an additional safety net that can help protect your work when AutoCAD or your computer fails unexpectedly.
Once you know where AutoCAD autosaves, how to locate an SV$ file, and how to recover it, you will be much better prepared to handle unexpected interruptions without losing valuable hours of design work.
At Geoinfoacademy, we help learners develop practical AutoCAD skills through structured, industry-focused training and hands-on learning. Whether you are completely new to AutoCAD or looking to improve your drafting skills, learning how to manage your drawings properly is just as important as learning the commands themselves.
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