How to Fix Sage Error: “I/O Error in the file [directory][dat file]”

Following is the list of steps:

If you are on a network ensure that the mapped drive is mapped to the right server name then here are the steps:

▪ Reboot all the system with Sage 50-US edition 
▪ If the issue persists then delete the file in the I/O error then run a repair software through the system hosting the Sage 50 data.
▪ Run repair 
▪ Check if the file with tax is then required to reinstall the advanced tax service update.

Check the data file permissions with the below steps:

▪ Locate the Shared folder and then give a right-click on it 
▪ Choose Properties 
▪ Click tab named Sharing 
▪ Select Advanced Sharing 
▪ Click on the box named Share this folder
▪ Select Permissions tab
▪ Hit Add option 
▪ Enter in the individual window the groups or usernames that will require access to Sage 50
▪ Additionally, embed the System group 
▪ Now give a hit on the tab named Check Names to test the user names 
▪ Choose OK
▪ Provide each added user or group Full control 
▪ Hit OK 
▪ It will launch Advanced Sharing Window
▪ Click Ok
▪ Check Administrators & system with Full Control 
▪ Hit OK

▪ Choose Help button
▪ Click Customer support & service
▪ Choose Integrity Check 
▪ Hit Backup tab
▪ Provide backup a name, select the location to save the backup, and then click Save 
▪ It will display Integrity Check Window
▪ Choose Reindex files
▪ Click on the list named Reindex file, choose the file with error 
▪ Choose OK
▪ If you get an error message that the file failed to be reindexed then search out of the file location
▪ Now right-click on the file and then choose Properties 
▪ If the check box is named Read-only, unselect it and then retry the file reindexing 
▪ If the file was not read-only then restore a backup made before getting the issue

If the company data folder is not in the data path then here are the steps:

▪ Search the folder location with the listed file and then copy the entire data folder.
▪ Find the data path with the following instructions
▪ Open Sage 50 software 
▪ Hit the File button then click the Open Company tab
▪ Now drag the window corner to display the full directory 
▪ The data path appears in the directory, minus the company name truncated spell
▪ To search the program path you need to give a right-click on the icon named Sage Shortcut
▪ Hit Properties tab
▪ The target line is highlighted in the blue color minus Peachw.exe is known as the program path 
▪ Hit Open File location to open the program path
▪ Paste the folder into the data path 
▪ At last check, you can open the Company file

▪ For this firstly close the Sage 50 
▪ Now give a right-click on it 
▪ Hit Run as administrator