Seeing errors like “Data Corrupted” or “File Not Found” in Tally Prime can be alarming. It may prevent you from opening your company data or working normally.

Don’t panic — in many cases, data can be recovered.

This guide explains why corruption happens, what you should do immediately, and how to prevent future problems.

What Is Data Corruption? (Simple Meaning)

Data corruption means:

✔ Tally cannot properly read your company data
✔ Files are damaged or incomplete
✔ Errors appear while opening or working

Common messages:

• Data Corrupted

• File Not Found

• Rewrite Required

• Unexpected Error

Why Does Data Corruption Happen?

Think of saving data like writing a document.

If power goes off midway, the file may become incomplete.

Most common causes:

• Sudden power failure

• System shutdown without closing Tally

• Computer crash / restart

• Network interruption (multi-user)

• Hard disk issues

• Virus / malware interference

• Improper backup/restore

? What To Do Immediately (Very Important)

When corruption error appears:

✔ STOP working immediately
✔ DO NOT repeatedly open Tally
✔ DO NOT copy files randomly

Why?

Repeated attempts may worsen damage.

✅ Step-by-Step Recovery Solutions

Follow these carefully.

1️⃣ Try Opening Backup Data (Safest Option)

If you take regular backups:

Steps:

1. Open Tally

2. Choose Restore Backup

3. Select latest backup location

✔ Often solves the problem instantly

2️⃣ Use Tally’s Built-In Repair Feature

Tally includes a repair option.

Steps (Simple):

1. Open Tally

2. Select company

3. Choose Repair / Rewrite (if visible)

✔ Fixes minor corruption

? If unsure, ask your Tally operator/accountant

3️⃣ Check If Data Folder Exists

Sometimes files are moved/deleted.

Steps:

1. Open This PC

2. Go to Tally data folder

3. Confirm company folder is present

✔ Missing folder → restore backup

4️⃣ Restart System & Try Again

Useful for temporary glitches.

✔ Restart computer
✔ Reopen Tally

5️⃣ Consult Tally Professional (For Serious Cases)

If repair fails:

✔ Data recovery tools may help
✔ Avoid experimenting yourself

⚠ Common Problems & Easy Understanding

? Important Precautions

✔ Always work on original data carefully
✔ Never delete data folders
✔ Never interrupt backup/restore
✔ Avoid force shutdown

✔ MOST IMPORTANT:

? Take backup BEFORE repair

✅ Best Practices to Prevent Corruption

✔ Use Proper Power Protection

4

✔ Install UPS (power backup)
✔ Prevent sudden shutdowns

✔ Close Tally Properly

✔ Always exit Tally before shutdown
✔ Avoid switching off directly

✔ Take Daily Backups (Critical Habit)

✔ Backup at end of day
✔ Store in separate drive/cloud

✔ Maintain Healthy Computer

✔ Enough free disk space
✔ No faulty hard disk
✔ Updated antivirus

✔ Stable Network (Multi-User)

✔ Prefer wired LAN
✔ Avoid unstable Wi-Fi

✔ Avoid Working During System Instability

✔ Hanging PC → restart first
✔ Slow system → fix performance

Short Conclusion

Tally data corruption is serious — but often recoverable.

✔ Backups = Lifesaver
✔ UPS + Safe usage = Best protection

When in doubt, seek professional help rather than experimenting.