The Recycle Bin link in the sidebar lets you view and restore recently deleted records for 15 days before they are permanently deleted. Your recycle bin record limit is 25 times the Megabytes (MBs) in your storage. For example, if your organization has 1 GB of storage then your limit is 25 times 1000 MB or 25,000 records. If your organization reaches its Recycle Bin limit, Salesforce automatically removes the oldest records if they have been in the Recycle Bin for at least two hours.

Choose My recycle bin from the drop-down list to view just the items you deleted. Administrators, and users with the “Modify All Data” permission, can choose All recycle bin to view all data that has been deleted for the entire organization. In Personal Edition, the All recycle bin option shows all of your deleted items.

1. Choose My recycle bin or All recycle bin from the drop-down list. Choosing My recycle bin searches for matches only in the items you deleted.
2. Enter your search terms. Search terms are treated as separate words with an implied AND between them. For example, searching for bob jones returns items with bob and jones together but not bob smith whose email address is [email protected]. An implied wildcard is appended to your search terms so searching for bob returns any bob or bobby. Searches look for matches in the field displayed in the Name column of the Recycle Bin such as lead Name, Case Number, Contract Number, or Product Name. Note
3. Click Search.

You can restore items by checking the box next to those items and clicking Undelete. To restore all deleted items, check the box in the column header and then click Undelete.
When you undelete a record, Salesforce restores the record associations for the following types of relationships:

• Parent accounts (as specified in the Parent Account field on an account)
• Parent cases (as specified in the Parent Case field on a case)
• Master solutions for translated solutions (as specified in the Master Solution field on a solution)
• Managers of contacts (as specified in the Reports To field on a contact)
• Products related to assets (as specified in the Product field on an asset)
• Opportunities related to quotes (as specified in the Opportunity field on a quote)
• All custom lookup relationships
• Relationship group members on accounts and relationship groups, with some exceptions
• Tags
• An article's categories, publication state, and assignments

To permanently remove your deleted items prior to the 15 day period, administrators, and users with the “Modify All Data” permission, can click Empty your recycle bin or Empty your organization’s recycle bin .