# Toad for Oracle 12.8 - Silent Crash @ Startup - Help **URL:** \ **Category:** Toad for Oracle & DevOps Toolkit\ **Created:** [February 29, 2016, 7:03am UTC](https://forums.toadworld.com/t/toad-for-oracle-12-8-silent-crash-startup-help/35191 "2016-02-29T07:03:46Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![N.B](https://avatars.discourse-cdn.com/v4/letter/n/bc8723/32.png) [@N.B](https://forums.toadworld.com/u/N.B)\ **Post date:** [February 29, 2016, 7:03am UTC](https://forums.toadworld.com/t/toad-for-oracle-12-8-silent-crash-startup-help/35191/1 "2016-02-29T07:03:46Z")
Greetings, Out of the blue I’ve begun having an issue with Toad for Oracle where it will crash silently (no dialog) upon trying to start the application. The only way I know it has crashed is by reviewing the entry in the Application Event Viewer, the most recent of which is below: Faulting application name: Toad.exe, version: 12.8.0.49, time stamp: 0x56145048 Faulting module name: unknown, version: 0.0.0.0, time stamp: 0x00000000 Exception code: 0xc0000005 Fault offset: 0x0000000000000002 Faulting process id: 0x658 Faulting application start time: 0x01d17300627214c2 Faulting application path: C:\Program Files\Dell\Toad for Oracle 2015 R2 Suite\Toad for Oracle 12.8\Toad.exe Faulting module path: unknown Report Id: a155716f-def3-11e5-ac08-340286d2b76a Unfortunately that doesn’t tell me anything. I did find the crash dump file and was able to examine it in Visual Studio, and this does give a bit more information: Dump Summary * * * Dump File: Toad.exe.1624.dmp : C:\Users\nb\AppData\Local\CrashDumps\Toad.exe.1624.dmp Last Write Time: 2/29/2016 8:49:31 AM Process Name: Toad.exe : C:\Program Files\Dell\Toad for Oracle 2015 R2 Suite\Toad for Oracle 12.8\Toad.exe Process Architecture: x64 Exception Code: 0xC0000005 Exception Information: **The thread tried to read from or write to a virtual address for which it does not have the appropriate access**. Heap Information: Not Present Ok, great. Here’s the problem though - Toad was working just fine last week on Monday and Tuesday, and I haven’t rebooted or applied any software updates since then, so why is it suddenly encountering this problem? I’ve tried completely uninstalling and reinstalling Toad and I still get the same crash behavior, so I’m not sure what to do at this point. Any ideas? ---
**Author:** ![ButtonPusher](https://sea1.discourse-cdn.com/quest/user_avatar/forums.toadworld.com/buttonpusher/32/147_2.png) [@ButtonPusher](https://forums.toadworld.com/u/ButtonPusher)\ **Post date:** [February 29, 2016, 7:13am UTC](https://forums.toadworld.com/t/toad-for-oracle-12-8-silent-crash-startup-help/35191/2 "2016-02-29T07:13:25Z")
Go here: “C:\Users\\AppData\Roaming\Dell\Toad for Oracle” and rename the 12.8 folder. Start Toad and see if that works **From:** N.B. [[mailto:bounce-NB@toadworld.com](mailto:bounce-NB@toadworld.com)] **Sent:** Monday, February 29, 2016 10:04 AM **To:** [toadoracle@toadworld.com](mailto:toadoracle@toadworld.com) **Subject:** [Toad for Oracle - Discussion Forum] Toad for Oracle 12.8 - Silent Crash @ Startup - Help **[Toad for Oracle 12.8 - Silent Crash @ Startup - Help](http://www.toadworld.com/products/toad-for-oracle/f/10/t/27555)** Thread created by N.B. Greetings, Out of the blue I’ve begun having an issue with Toad for Oracle where it will crash silently (no dialog) upon trying to start the application. The only way I know it has crashed is by reviewing the entry in the Application Event Viewer, the most recent of which is below: Faulting application name: Toad.exe, version: 12.8.0.49, time stamp: 0x56145048 Faulting module name: unknown, version: 0.0.0.0, time stamp: 0x00000000 Exception code: 0xc0000005 Fault offset: 0x0000000000000002 Faulting process id: 0x658 Faulting application start time: 0x01d17300627214c2 Faulting application path: C:\Program Files\Dell\Toad for Oracle 2015 R2 Suite\Toad for Oracle 12.8\Toad.exe Faulting module path: unknown Report Id: a155716f-def3-11e5-ac08-340286d2b76a Unfortunately that doesn’t tell me anything. I did find the crash dump file and was able to examine it in Visual Studio, and this does give a bit more information: Dump Summary * * * Dump File: Toad.exe.1624.dmp : C:\Users\nb\AppData\Local\CrashDumps\Toad.exe.1624.dmp Last Write Time: 2/29/2016 8:49:31 AM Process Name: Toad.exe : C:\Program Files\Dell\Toad for Oracle 2015 R2 Suite\Toad for Oracle 12.8\Toad.exe Process Architecture: x64 Exception Code: 0xC0000005 Exception Information: **The thread tried to read from or write to a virtual address for which it does not have the appropriate access**. Heap Information: Not Present Ok, great. Here’s the problem though - Toad was working just fine last week on Monday and Tuesday, and I haven’t rebooted or applied any software updates since then, so why is it suddenly encountering this problem? I’ve tried completely uninstalling and reinstalling Toad and I still get the same crash behavior, so I’m not sure what to do at this point. Any ideas? To reply, please reply-all to this email. [Stop receiving emails](http://www.toadworld.com/products/toad-for-oracle/f/10/t/27555?subscribe=false) on this subject. Or [ Unsubscribe from Toad for Oracle - General](http://www.toadworld.com/products/toad-for-oracle/f/10?subscribe=false) notifications altogether. Toad for Oracle - Discussion Forum [Flag](http://www.toadworld.com/products/toad-for-oracle/f/10/t/27555?AbuseContentId=b825ba3e-6800-425d-a049-6653d78a20e6&AbuseContentTypeId=46448885-d0e6-4133-bbfb-f0cd7b0fd6f7&AbuseFlag=true) this post as spam/abuse. ---
**Author:** ![N.B](https://avatars.discourse-cdn.com/v4/letter/n/bc8723/32.png) [@N.B](https://forums.toadworld.com/u/N.B)\ **Post date:** [February 29, 2016, 7:16am UTC](https://forums.toadworld.com/t/toad-for-oracle-12-8-silent-crash-startup-help/35191/3 "2016-02-29T07:16:52Z")
Hi Brad, No dice - still crashes silently, same exception code. ---
**Author:** ![mstaszew](https://sea1.discourse-cdn.com/quest/user_avatar/forums.toadworld.com/mstaszew/32/23_2.png) [@mstaszew](https://forums.toadworld.com/u/mstaszew)\ **Post date:** [February 29, 2016, 7:17am UTC](https://forums.toadworld.com/t/toad-for-oracle-12-8-silent-crash-startup-help/35191/4 "2016-02-29T07:17:31Z")
Ø Toad was working just fine last week on Monday and Tuesday, and **I haven’t rebooted or applied any software updates since then** Since experiencing the crash have you tried a reboot? If rebooting does nothing you could try to reset your user files as a test. Make sure no Toad instances are running in Task Manager, kill any you find. If there were any running I would try Toad again. If you still get the crash kill any running Toads and locate your appdata folder. By default it is located here… “%APPDATA%\Dell\Toad for Oracle\12.8” Rename this folder and try Toad again. Michael **From:** N.B. [[mailto:bounce-NB@toadworld.com](mailto:bounce-NB@toadworld.com)] **Sent:** Monday, February 29, 2016 10:04 AM **To:** [toadoracle@toadworld.com](mailto:toadoracle@toadworld.com) **Subject:** [Toad for Oracle - Discussion Forum] Toad for Oracle 12.8 - Silent Crash @ Startup - Help **[Toad for Oracle 12.8 - Silent Crash @ Startup - Help](http://www.toadworld.com/products/toad-for-oracle/f/10/t/27555)** Thread created by N.B. Greetings, Out of the blue I’ve begun having an issue with Toad for Oracle where it will crash silently (no dialog) upon trying to start the application. The only way I know it has crashed is by reviewing the entry in the Application Event Viewer, the most recent of which is below: Faulting application name: Toad.exe, version: 12.8.0.49, time stamp: 0x56145048 Faulting module name: unknown, version: 0.0.0.0, time stamp: 0x00000000 Exception code: 0xc0000005 Fault offset: 0x0000000000000002 Faulting process id: 0x658 Faulting application start time: 0x01d17300627214c2 Faulting application path: C:\Program Files\Dell\Toad for Oracle 2015 R2 Suite\Toad for Oracle 12.8\Toad.exe Faulting module path: unknown Report Id: a155716f-def3-11e5-ac08-340286d2b76a Unfortunately that doesn’t tell me anything. I did find the crash dump file and was able to examine it in Visual Studio, and this does give a bit more information: Dump Summary * * * Dump File: Toad.exe.1624.dmp : C:\Users\nb\AppData\Local\CrashDumps\Toad.exe.1624.dmp Last Write Time: 2/29/2016 8:49:31 AM Process Name: Toad.exe : C:\Program Files\Dell\Toad for Oracle 2015 R2 Suite\Toad for Oracle 12.8\Toad.exe Process Architecture: x64 Exception Code: 0xC0000005 Exception Information: **The thread tried to read from or write to a virtual address for which it does not have the appropriate access**. Heap Information: Not Present Ok, great. Here’s the problem though - Toad was working just fine last week on Monday and Tuesday, and I haven’t rebooted or applied any software updates since then, so why is it suddenly encountering this problem? I’ve tried completely uninstalling and reinstalling Toad and I still get the same crash behavior, so I’m not sure what to do at this point. Any ideas? To reply, please reply-all to this email. [Stop receiving emails](http://www.toadworld.com/products/toad-for-oracle/f/10/t/27555?subscribe=false) on this subject. Or [ Unsubscribe from Toad for Oracle - General](http://www.toadworld.com/products/toad-for-oracle/f/10?subscribe=false) notifications altogether. Toad for Oracle - Discussion Forum [Flag](http://www.toadworld.com/products/toad-for-oracle/f/10/t/27555?AbuseContentId=b825ba3e-6800-425d-a049-6653d78a20e6&AbuseContentTypeId=46448885-d0e6-4133-bbfb-f0cd7b0fd6f7&AbuseFlag=true) this post as spam/abuse. ---
**Author:** ![N.B](https://avatars.discourse-cdn.com/v4/letter/n/bc8723/32.png) [@N.B](https://forums.toadworld.com/u/N.B)\ **Post date:** [February 29, 2016, 7:20am UTC](https://forums.toadworld.com/t/toad-for-oracle-12-8-silent-crash-startup-help/35191/5 "2016-02-29T07:20:25Z")
Hi Michael, My apologies, what I meant is that I hadn’t rebooted between the time it was working and the time it stopped working - the very first thing I did when I figured out it was crashing silently is reboot, and that didn’t fix the issue. I then uninstalled, rebooted, and reinstalled Toad - still having the same issue. And I’ve renamed the folder and I’m still crashing silently. ---
**Author:** ![ButtonPusher](https://sea1.discourse-cdn.com/quest/user_avatar/forums.toadworld.com/buttonpusher/32/147_2.png) [@ButtonPusher](https://forums.toadworld.com/u/ButtonPusher)\ **Post date:** [February 29, 2016, 7:29am UTC](https://forums.toadworld.com/t/toad-for-oracle-12-8-silent-crash-startup-help/35191/6 "2016-02-29T07:29:22Z")
Just grasping at straws here but do you have any other folders in your Toad for Oracle app data directory you could clean up? (where I pointed you earlier). Maybe you’re running out of disk space? **From:** N.B. [[mailto:bounce-NB@toadworld.com](mailto:bounce-NB@toadworld.com)] **Sent:** Monday, February 29, 2016 10:22 AM **To:** [toadoracle@toadworld.com](mailto:toadoracle@toadworld.com) **Subject:** RE: [Toad for Oracle - Discussion Forum] Toad for Oracle 12.8 - Silent Crash @ Startup - Help **[RE: Toad for Oracle 12.8 - Silent Crash @ Startup - Help](http://www.toadworld.com/products/toad-for-oracle/f/10/p/27555/59223#59223)** Reply by N.B. Hi Michael, My apologies, what I meant is that I hadn’t rebooted between the time it was working and the time it stopped working - the very first thing I did when I figured out it was crashing silently is reboot, and that didn’t fix the issue. I then uninstalled, rebooted, and reinstalled Toad - still having the same issue. And I’ve renamed the folder and I’m still crashing silently. To reply, please reply-all to this email. [Stop receiving emails](http://www.toadworld.com/products/toad-for-oracle/f/10/t/27555?subscribe=false) on this subject. Or [ Unsubscribe from Toad for Oracle - General](http://www.toadworld.com/products/toad-for-oracle/f/10?subscribe=false) notifications altogether. Toad for Oracle - Discussion Forum [Flag](http://www.toadworld.com/products/toad-for-oracle/f/10/p/27555/59223?AbuseContentId=c2595529-0b69-4694-a36b-86e29d99b153&AbuseContentTypeId=f586769b-0822-468a-b7f3-a94d480ed9b0&AbuseFlag=true) this post as spam/abuse. ---
**Author:** ![mstaszew](https://sea1.discourse-cdn.com/quest/user_avatar/forums.toadworld.com/mstaszew/32/23_2.png) [@mstaszew](https://forums.toadworld.com/u/mstaszew)\ **Post date:** [February 29, 2016, 7:29am UTC](https://forums.toadworld.com/t/toad-for-oracle-12-8-silent-crash-startup-help/35191/7 "2016-02-29T07:29:58Z")
Sorry, I don’t have anything. A reinstall of Toad and rename of that folder would rule out corrupt installation/configuration files suggesting some system problem or a change that Toad doesn’t like. ---
**Author:** ![N.B](https://avatars.discourse-cdn.com/v4/letter/n/bc8723/32.png) [@N.B](https://forums.toadworld.com/u/N.B)\ **Post date:** [February 29, 2016, 7:32am UTC](https://forums.toadworld.com/t/toad-for-oracle-12-8-silent-crash-startup-help/35191/8 "2016-02-29T07:32:24Z")
Hi Brad, The only other folder is the 12.7, which I’ve renamed as well - still crashes. I’ve got right at 10 GB of disk space free, which I should think would be more than enough for Toad to start - I’ve had less in the past with no issues. ---
**Author:** ![Dennis\_Paulus](https://sea1.discourse-cdn.com/quest/user_avatar/forums.toadworld.com/dennis_paulus/32/138_2.png) [@Dennis\_Paulus](https://forums.toadworld.com/u/Dennis_Paulus)\ **Post date:** [February 29, 2016, 11:43am UTC](https://forums.toadworld.com/t/toad-for-oracle-12-8-silent-crash-startup-help/35191/9 "2016-02-29T11:43:57Z")
This is just a long shot, but…you might want to try running a virus/malware scan on your computer, if you haven’t done one lately. I found a couple random posts where this helped a couple people with similar errors in the past (not specifically Toad related tho).