MySQL shutdown unexpectedly and stating issue

🛠 How to Restore MySQL Database from Backup in XAMPP

If you're trying to restore your MySQL databases from a backup using XAMPP, follow these steps carefully:

📁 Step 1: Rename the Existing data Folder

First, you’ll want to rename the current MySQL data directory to keep a backup of it:

bas
rename mysql/data to mysql/data_old

Or manually:

1. Navigate to C:\xampp\mysql.

2. Rename the data folder to data_old.

📂 Step 2: Copy the Backup Folder

Now, copy your backup folder and rename it to data:

 mysql/backup to mysql/data

Manually:

1. Copy the entire backup folder located in C:\xampp\mysql.

2. Paste it inside the same mysql directory.

3. Rename the copied folder to data.

📄 Step 3: Copy Database Folders and MySQL System Folder

Next, copy your actual databases and the mysql system folder from the old data directory to the new one:

1. Go to C:\xampp\mysql\data_old.

2. Copy all your custom database folders (except performance_schema, phpmyadmin, etc.).

3. Also copy the mysql folder.

4. Paste them into C:\xampp\mysql\data.

⚠️ Make sure you're not overwriting any important system folders already present in the backup.

📌 Step 4: Copy ibdata1 File

Copy the important ibdata1 file from the old data directory:

bash

mysql/data_old/ibdata1 to mysql/data

Manually:

1. Find the ibdata1 file inside C:\xampp\mysql\data_old.

2. Copy it and paste it into C:\xampp\mysql\data, replacing the existing one.

▶ Step 5: Start MySQL from XAMPP

Now, open your XAMPP Control Panel and:

1. Click Start next to MySQL.

2. If everything was copied correctly, MySQL should start without errors.

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✅ Final Note

This method is useful when you’re restoring data from a backup or migrating MySQL databases manually. Always back up your folders before making changes!

Replace your MySQL folder into new MySQL file, then its work fine