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AS

Tally Data Recovery

Tally keeps each company's data in its own data folder rather than a client-server database engine, which makes it especially sensitive to interruptions during a write — particularly when the data folder sits on a shared network drive. AS recovers Tally company data directly from the data folder structure, independent of whether Tally itself can open it.

When you need this

  • Tally reports the company data seems to be corrupted or fails verification
  • Data folder damaged after a crash, power loss or a dropped network connection mid-write
  • Company data deleted or a data folder accidentally overwritten
  • Tally's own Rewrite/repair feature fails to bring the company back
  • Ransomware-encrypted Tally data folder
  • Migrating company data off a failed server that still holds the only copy

What we do

Data folder assessment

The company's data folder is imaged and assessed directly at the file level, independent of whether Tally itself can open or verify it.

Beyond Tally's own repair tools

Tally's built-in Rewrite feature resolves minor inconsistencies but isn't a full recovery tool; when it fails or reports data loss, we work directly with the underlying data files instead.

Network-interruption cases

Tally data hosted on a shared network drive is particularly exposed to corruption from a dropped connection or power loss mid-save. We assess what's actually recoverable from the affected data folder rather than assuming the whole company file is lost.

Partial-encryption cases

Where ransomware has partially encrypted the data folder, we assess how much of the company data remains intact and extract it where technically feasible.

Large Tally data file after a partial-encryption ransomware variant (illustrative example):

File header (first blocks)ENCRYPTEDtargeted first
Blocks 1 – 4,000intactoften untouched
Block 4,001ENCRYPTEDevery Nth block
Blocks 4,002 – 8,000intactrecoverable
Block 8,001ENCRYPTEDevery Nth block
Blocks 8,002 – 50,000intactrecoverable

Example outcome after block-level assessment:

✓ 49,997 of 50,000 blocks readable

Actual recoverable percentage depends on the variant and file — established during assessment, not assumed in advance.

Where ransomware has only partially encrypted the data folder, the untouched portion of the company data is often still extractable — the numbers above are an illustrative example, not a guaranteed outcome.

How it works

  1. Step 1

    Consultation and scope

    We establish what failed, what has been tried, and which data matters most. This shapes a targeted plan rather than a generic one.

  2. Step 2

    Secure imaging and diagnosis

    Where possible the source media is imaged before any work, so the original is never altered. Diagnosis then determines the safest recovery method.

  3. Step 3

    Recovery

    Data is extracted from the image or source using methods matched to the failure — logical, structural or hardware-level as required.

  4. Step 4

    Verification

    Recovered data is checked for integrity and completeness, and a file list is shared so you can confirm what matters is there.

  5. Step 5

    Secure delivery

    Verified data is returned through an agreed secure method, with guidance on validation before it goes back into production.

What affects the outcome

Outcomes are never guaranteed. Every case is assessed on its own condition, and we tell you what is realistic before you commit.

  • Physical condition of the media and the extent of any damage
  • Whether the media has been written to, reformatted or re-initialised since the failure
  • Encryption, corruption or partial overwriting of the data
  • Availability of source data such as images, backups, logs or transaction records
  • Attempts made before assessment (rebuilds, repair tools, repeated reboots)

Frequently asked questions

Tally says our company data is corrupted — is it gone?

Not necessarily. Tally's own corruption message often appears well before the underlying data is genuinely unrecoverable. We assess the data folder directly before assuming anything is lost.

Tally's Rewrite feature didn't fix it — now what?

Rewrite handles minor inconsistencies but isn't designed for significant damage. When it fails, we work directly with the data folder's files at a lower level rather than relying on Tally's own repair path.

Our Tally data was on a network share and the connection dropped mid-save — is that always fatal?

It's a common cause of corruption, but not always unrecoverable. We assess the specific damage to the data folder before concluding anything is a total loss.

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