[php] "Error 1067: The process terminated unexpectedly" when trying to start MySQL

I'm using Windows 7 and running XAMPP MySQL SVC service. I'm seeing the following error:

Windows could not start the Mysql service on Local Computer.

Error 1067: The process terminated unexpectedly.

What does this mean, and how can I fix it?

This question is related to php mysql windows-7 xampp

The answer is


Don't forget to check

innodb_data_home_dir = <your_directory_location>
innodb_log_group_home_dir = <your_directory_location>

on my.ini files. Wrong set value for these two variable make mysql process terminated and produce error 1067. Also check eventvwr.msc and mysql_error.log for detail error.


You need to:

  1. stop the MySQL service:
  2. Open mysql path\data
  3. Remove both ib_logfile0 and ib_logfile1.
  4. Restart the service

I had the same problem but I was confused with @Vladislav's answer and couldn't seem to find the solution from that. Of course, my problem may not be exactly the same as I encountered the problem when trying to upgrade XAMPP, but it also gave the same Error 1067 message.

With further search I found this:

https://serverfault.com/questions/214435/error-1067-the-process-terminated-unexpectedly-when-trying-to-install-mysql-on

The answer from that is straightforward, that is, to completely clean up the folder, which doesn't always happen. As in regards to XAMPP, I guess I backed up the necessary files first (data folder from mysql folder and the htdocs folder). Uninstall XAMPP. Check the xampp folder for any content that remains and delete everything. You may want to reboot afterwards, just in case. Then reinstall XAMPP. Copy the backed-up folders back to their respective places, and hopefully, mySql will work again in XAMPP.

This should solve the issue.


error reason running mysql in XAMPP server in win8 thats hapen for me.

if error display when you install MariaDB First Stop MySql in XAMPP

and install MariaDB there is not problem now...have a nice day...


I use install file to repair. it works for me


I had the same problem. I am using mysql 5.6.11. To solve this problem I had to change my-default.ini file in mysql-5.6.11-win32 folder So I just pasted the following lines under line [mysqld]

basedir="D:\mysql-5.6.11-win32\"
datadir="D:\mysql-5.6.11-win32\data\"
port=3306
server-id=1
bind-address=127.0.0.1

Options basedir and datadir need to be modified for mysql location.


I just went throught same issue and I solved it the following way. 1 - found the .err file which logs all mysql issues, in win7, located under programData\MySQL\MySQL Server 5.6\data\ 2 - Check the last entries from the file and, in my case, I found the error was coming from a flag (audit-log) that I set to "true" from the workbench interface the day before! 3 - went into the my.ini file, and removed audit-log=ON. 4 - launched mysql service and it worked!!


I get this problem from time to time, and when I do, I have been able to solve it by using a backup of the database folder(s) that give the problem.

When you check your 'Event Viewer > Windows Log > Application', if you see an error:

InnoDB: Attempted to open a previously opened tablespace. Previous tablespace [database]/[table] uses space ID: 59 at filepath: .\[database]\[table].ibd. Cannot open tablespace [different db]/[different table] which uses space ID: 59 at filepath: .\[different db]/[different table].ibd

Then what works for me, is delete the first mentioned [database] folder in your MySQL data directory, and copy the backup of that database folder to where it was previously.

Then start MySQL, and it starts again for me, without this 1067 error.


There are many solutions for the problem. This worked for me

Right click on Service -> Properties -> Log on as system account.

enter image description here


I've got the same problem, and what worked for me is in THIS OTHER ANSWER.

I didn't replicated it here because it is NOT A CORRECT THING TO DO.

Basically is a re-install being sure to delete everything very well and using 32 bit versions.


I had practically the same problem. in the log file I found this:

110903  9:09:39  InnoDB: 1.1.4 started; log sequence number 1595675
110903  9:09:40 [ERROR] Fatal error: Can't open and lock privilege tables: Incorrect key file for table 'user'; try to repair it

Apparently the user table has been corrupted. I replaced it with another copy (user.frm ; user.MYD ; user.MYI in mysql\data\mysql)
and thats works for me.

ps: am using xampp.


Same problem here. After analysing log reports via eventvwr.msc I found, that logging files were placed in folder which requires admin rights to update, so files cannot be created and install and startup process could not proceed.

So checking eventlog was very usefull.


Search and destroy (or move cautiously) any my.ini files (windows or program files), which is affecting the mysql service failure. also check port 3306 is used by using either netstat or portqry tool. this should help. Also if there is a file system issue you can run check disk.


I had the same error. I checked the error logs: C:\ProgramData\MySQL\MySQL Server 5.5\data\inf3rno-PC.err. According to them

170208  1:06:25 [Note] C:\Program Files\MySQL\MySQL Server 5.5\bin\mysqld: Shutdown complete

170208  1:10:44 [Note] Plugin 'FEDERATED' is disabled.
170208  1:10:44 InnoDB: The InnoDB memory heap is disabled
170208  1:10:44 InnoDB: Mutexes and rw_locks use Windows interlocked functions
170208  1:10:44 InnoDB: Compressed tables use zlib 1.2.3
170208  1:10:44  InnoDB: Error: unable to create temporary file; errno: 2
170208  1:10:44 [ERROR] Plugin 'InnoDB' init function returned error.
170208  1:10:44 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
170208  1:10:44 [ERROR] Unknown/unsupported storage engine: INNODB
170208  1:10:44 [ERROR] Aborting

I think the important part here

170208  1:10:44  InnoDB: Error: unable to create temporary file; errno: 2

I changed the TMP and TEMP env variables from C:\Windows\Temp to %USERPROFILE%\AppData\Local\Temp yesterday, because I was unable to compress a directory and according to many post the solution is that. Now compression works, but mysql and apparently nod32 complains that they cannot create temporary files...

I added tmpdir=c:/server/mytmp to C:\Program Files\MySQL\MySQL Server 5.5\my.ini. And after that started the service again with services.msc. It is okay now.

So this can be a possible cause as well. I strongly suggest to everybody encountering this problem to check the error logs.


please check the space available on drive where the db is stored. in my case it was stopped the service due to less space on drive.


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