How to use Nanus, feature by feature
One page for every feature: what it is for, where to find it, how to use it step by step and what Nanus checks. In the app, short answers are in Help, behind the “?” button at the top.
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Getting started
Set up your company, find your way around the app and reach any feature fast.
7 pages
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Initial company setup
The guided setup at first sign-in: business details, address and payments in a few steps, so you can issue your first e-invoice straight away.
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Finding your way: menu, Home, search and shortcuts
How the Nanus screen is laid out: the section menu, the Home page with your to-dos, the universal search bar and the keyboard shortcuts.
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Use Nanus on a smartphone or tablet
Nanus in your phone’s browser: the bottom bar, the Create button, the More panel, how to choose its items and how to add Nanus to your home screen.
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Change language, dark theme and text size
Choose the interface language (Italian or English), the light, dark or automatic theme, and larger description text.
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The Nanus guided tour
A one-minute walk through the main features, with a bubble next to each element. How to start it, move through it and replay it whenever you like.
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What’s new and Nanus updates
How new Nanus versions reach your browser and your computer, where to read what changed and how to find out which version you are using.
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In-app help, support and feedback
Find answers in the Nanus Help, open the help for the page you are on and write to the team to report an error, an idea or a question.
Invoices and sales
E-invoices, credit notes, delivery notes, sending to the SDI and counter sales.
20 pages
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Create an e-invoice
How to prepare and issue an Italian e-invoice: customer, lines, VAT, payment terms and the checks run before sending it to the SDI.
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Document types TD01-TD29
What the Italian e-invoice document types (TD01, TD04, TD24…) mean, when to use each one and where Nanus sets them.
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Send an invoice to the SDI
How to transmit an e-invoice to the SDI exchange system from your certified email (PEC) or through an intermediary, and what happens next.
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SDI statuses: receipts and notifications
What invoice statuses mean after sending (delivered, not delivered, rejected, accepted by a public body…) and what to do in each case.
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Fix an invoice rejected by the SDI
What to do when the SDI rejects an invoice: read the error code, fix the cause and transmit the invoice again.
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Issue a credit note
How to reverse all or part of an issued invoice with a TD04 credit note: returned goods, discounts, price errors.
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Issue a debit note
How to charge a customer an extra amount on an issued invoice with a TD05 debit note: price differences, interest, costs.
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Deferred invoice from delivery notes
How to group a customer’s delivery notes (DDT) into a TD24 deferred invoice, with checks on the deadline of the 15th of the following month.
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Issue a delivery note (DDT)
How to prepare an Italian delivery note: customer, destination, goods, reason, carrier, packages and weights, with the stock issue.
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Accompanying invoice
How to issue an invoice that travels with the goods, without a delivery note, with carrier, packages, weights and transport start in the XML and PDF.
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Recurring invoices (fees and subscriptions)
How to set customer, lines and frequency of fees, rents and subscriptions once and issue the invoices when they fall due.
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Invoice a public administration (CIG, CUP)
How to invoice an Italian public body: office code, CIG and CUP references, split payment and the public body’s outcome.
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Stamp duty on invoices
When the 2-euro virtual stamp duty applies to VAT-free invoices, how Nanus applies it automatically and how to charge it to the customer.
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Invoice in a foreign currency
How to invoice a foreign customer in dollars, pounds or other currencies, with the exchange rate and euro equivalent required for Italian VAT.
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Withholding tax and pension fund
Invoices and fee notes for professionals: withholding tax, a second withholding, pension fund contribution or INPS recharge and net amount due.
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Email the invoice PDF
How to email the customer the PDF courtesy copy, one invoice at a time or several together, with subject and text already proposed.
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View the e-invoice as the Revenue Agency shows it
How to view and print an e-invoice with the official Italian Revenue Agency stylesheet, exactly as the recipient sees it.
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Invoice list: search and bulk actions
How to search and filter invoices, read the totals and print, download or email several invoices at once.
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Duplicate or delete an invoice
Redo an invoice starting from an old one, and delete a draft or a rejected invoice, undoing due dates and stock movements.
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Counter sales and day closing
Record shop sales with a barcode reader, invoice on request, cancel, handle returns and close the day.
Quotes and orders
Quotes, pro forma invoices, customer orders, fulfilment and online shops.
6 pages
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Make a quote and turn it into an order
How to prepare a quote for a customer, send it as PDF or by email, track its status and turn it into an order once it is accepted.
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Make a pro forma invoice
How to prepare a pro forma to ask the customer for payment and turn it into the real e-invoice when the payment arrives.
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Record a customer order
How to record customer orders, with the customer’s reference, CIG and CUP, and follow them until they are delivered and invoiced.
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Fulfil an order with a delivery note or invoice
How to deliver a customer order in one or more goes with delivery notes, or invoice it straight away without one, keeping track of what is outstanding.
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Take a customer order on a smartphone
The quick form for agents and sales staff: pick the customer, scan barcodes, check prices and the last price charged, and send the order to the office.
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Connect an online shop (WooCommerce, Shopify and more)
How to download paid WooCommerce, Shopify, PrestaShop, Magento or Ecwid orders into Nanus and send stock and prices to the shop.
Purchases
Supplier invoices, self-billing, purchase orders and reordering.
8 pages
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Record a supplier invoice
How to record a supplier’s XML or p7m e-invoice in purchases, or a paper invoice by hand, with stock receipt and due dates.
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Receive supplier invoices from PEC
How to bring the invoices the SDI delivers to your PEC mailbox into Nanus and record them in purchases with one click, or discard them.
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Open an XML or p7m e-invoice
How to view, print or save as PDF an XML or p7m e-invoice, or a ZIP received by PEC or from the tax drawer, without saving it in Nanus.
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Issue a self-invoice or integration (TD16-TD29)
Integrations and self-invoices for reverse charge, foreign purchases, plafond overrun, gifts and regularisations, from the supplier invoice or from scratch.
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Order from a supplier and record goods received
How to create a purchase order, send it as PDF or by email, record deliveries with the supplier’s delivery note and link their invoice.
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Ask suppliers for a quotation
How to send a request for quotation to one or more suppliers, record the quoted prices and turn the best offer into a purchase order.
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Reorder products below minimum stock
How Nanus works out which products to reorder from stock, committed and incoming quantities, and creates one order for each preferred supplier.
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Import a supplier price list
How to load a supplier’s CSV or Excel price list to update codes and purchase prices on your products, with a preview before saving.
Customers and suppliers
Contacts, import, VIES check, letters of intent, agents and banks.
7 pages
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Add a customer or supplier
How to create a customer or supplier record with the data an Italian e-invoice needs: VAT number, recipient code or PEC address.
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Import customers and suppliers from Excel or CSV
How to load your customer and supplier list from a CSV or Excel file, with a row-by-row preview and checks for errors and duplicates.
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Check a VAT number in VIES
How to check from the customer record that an EU VAT number is valid in VIES and keep the result as evidence for intra-EU supplies.
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See a customer or supplier overview
Sales and purchases for the year, what is left to collect or pay, overdue amounts, open items and the latest documents, at the top of the record.
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Record a letter of intent
How to record a habitual exporter’s letter of intent (dichiarazione d’intento): Nanus cites it on N3.5 invoices and tracks the remaining ceiling.
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Manage sales agents and commissions
How to create sales agents, assign them to customers, calculate commissions on invoices and settle them with Enasarco and withholding tax.
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Bank list: ABI, CAB and BIC
How Nanus recognises the bank from an IBAN and how to add branches, BIC codes and foreign banks to the list, by hand or from a CSV file.
Items and stock
Items, price lists, variants, serial numbers, warehouses, movements and stocktaking.
13 pages
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Create a product
How to create goods or a service with code, price, VAT, barcode and stock tracking, ready to use in invoices, delivery notes and orders.
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Import products from Excel or CSV
How to load your catalogue from a CSV or Excel file, update existing products and align stock, with a preview before saving.
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Price lists and customer prices
How to create price lists with dedicated prices or a markup, assign them to customers, set prices reserved for a customer and print the list as PDF.
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Raise or lower prices in bulk
How to change by a percentage the selling prices, costs or price list prices of many products at once, with a preview and rounding.
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Variants: sizes, colours and dimensions
How to create a product’s variants, each with its own code, stock and optionally price and barcode, and how to use them in documents.
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Kits and bundles
How to create a kit made of other products: when you sell it, its components leave the warehouse in the quantities set.
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Lots and serial numbers
How to manage lots with expiry dates and serial numbers of individual pieces: where to enter them, how to find them and what Nanus checks.
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Multiple warehouses and stock transfers
How to add warehouses, shops or vans, see each one’s stock and move goods from one warehouse to another.
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Stock movements: receipts, issues and adjustments
How to record receipts, issues, returns and adjustments by hand, read stock and value at average cost, and print or export movements.
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Stock valuation and physical stock count
How to print stock valued at a date for the annual accounts and record a physical count, which corrects stock where the quantity differs.
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Inventory reports: lots, serial numbers, prices, customer orders and minimum stock
How to browse, print as PDF and export as CSV stock by lot and by serial number, latest prices, customer orders to deliver and items below minimum stock.
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Warehouse terminal: check goods with a barcode reader
How to check incoming goods or count stock by scanning barcodes with a reader or with your smartphone camera.
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Print barcode labels
How to print product labels with description, price and barcode on A4 adhesive sheets, by copies, by stock or for goods just received.
Due dates and payments
Due dates, collections, reminders, RiBa and SDD, bank reconciliation.
7 pages
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Customer and supplier payment schedule
All instalments to collect from customers and to pay to suppliers, with overdue amounts, outstanding balance and days late, in one list.
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Record a receipt or a payment
How to mark that a customer has paid or that you have paid a supplier, even partly, and where the entry ends up.
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F24 payment forms
Prepare F24 forms for VAT, stamp duty on electronic invoices and withholding tax, see them among the payments of the schedule and record the payment in the cash book.
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Chase a customer who has not paid
Reminder letter as PDF or by email listing all overdue instalments, reminder history and automatic sending after the days overdue you choose.
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Payment terms (30/60/90 days, end of month, RiBa)
How to create payment terms with instalments, end of month, fixed day and skipped months, from which Nanus calculates invoice due dates.
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RiBa and SEPA direct debit (SDD) batches
How to present Italian bank receipts (RiBa) and SEPA direct debits to the bank: online banking file, credit and unpaid items.
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Bank reconciliation with the bank statement
Upload the bank statement as CSV or Excel: Nanus matches transactions to open receipts and payments and records the rest in the cash book.
Accounting
VAT registers, VAT settlements, cash book, withholding tax, Intrastat and reports.
11 pages
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Sales and purchase VAT registers
The VAT registers of issued invoices and purchases, built from your documents, with a summary by rate, PDF printout and CSV export.
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Monthly or quarterly VAT settlement
The calculation of VAT to pay by month or quarter, with credit carried forward, interest, advance, F24 tax code and deadline.
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Cash and bank cash book
Cash and bank income, expenses and transfers with a running balance: receipts and payments arrive automatically, the rest is entered by hand.
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Double-entry bookkeeping (journal, ledgers, balance)
General journal, ledgers, trial balance and balance sheet for internal use, built from your documents, with a customisable chart of accounts.
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Send your data to your accountant
ZIP package with XML invoices, VAT registers and cash book, CSV files and customisable layouts for accounting software.
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Withholding tax suffered and Certificazioni Uniche
The register of withholding tax customers retain on your invoices, by year of payment, compared with the Certificazioni Uniche you receive.
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Intrastat lists
Summary lists of intra-EU supplies and purchases of goods and services, built from your documents, as CSV and PDF.
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Daily takings register (corrispettivi)
The daily register of takings without invoice, with VAT extracted by rate, from counter sales or from the cash register’s Z report.
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Quarterly payment of stamp duty on e-invoices
How many invoices carry the €2 virtual stamp duty each quarter, the amount to pay, the F24 tax code and the deadline.
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Flat-rate scheme: revenue threshold and tax estimate
For businesses in the Italian flat-rate scheme (regime forfettario): revenue collected against the €85,000 threshold, warnings before leaving the scheme and an estimate of substitute tax and contributions.
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Sales and purchase statistics
Turnover, margins, purchases, collections and commissions for any period, broken down by customers, items, agents, classes and price lists, with charts and PDF, CSV and Excel export.
Settings
Company details, SDI, printing and email, users, imports, backups and integrations.
13 pages
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Enter your company details
Company name, VAT number, tax regime, address, bank accounts and contacts: the details Nanus puts as the supplier on every invoice.
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Invoice numbering and number series
How Nanus numbers invoices and delivery notes each year and how to create separate number series such as 1/A, 1/B or self-invoices in 1/AF.
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Default VAT rate, unit of measure and delivery note details
Choose the VAT rate, unit of measure and transport details that new document lines, new items and delivery notes start with.
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Set up SDI sending and receiving
Choose the channel used to send invoices to the SDI and receive supplier invoices: your company PEC mailbox, the Aruba intermediary or Nanus’s direct channel.
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Logo and print layout of documents
Add your logo, choose a colour and one of six layouts, or build your own, for the PDF of invoices, delivery notes, quotes and orders.
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Set up outgoing mail
Set the SMTP server Nanus uses to email documents and payment reminders, and the texts proposed in messages.
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Invite team members and assign roles
Give access to colleagues, your accountant or sales agents with an invitation and a role that decides what they can see and change.
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Import data from other software
Bring issued and received XML invoices, customers, suppliers and items with stock into Nanus from the software you used before.
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Back up and restore your data
Download all company data in one file and restore it here or on another installation; on desktop also daily copies and external backup.
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Connect other software with API and webhooks
Receive a webhook for every Nanus event (invoice issued, delivery note, order, received invoice…), read the event log without missing any, and sync orders, documents, customers and items with an API key.
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Automations: recurring invoices and automatic reminders
Let Nanus issue recurring invoices when due, email them and send payment reminders to late customers, once a day.
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Activity log: who did what
Review sign-ins, data changes and account security changes, filter by person, area and dates and export a CSV.
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Use Nanus on a local network with several computers
With the desktop app several office computers work on the same data, which stays on the main workstation, each with their own account.
Account and security
Sign-in, passwords, passkeys, multiple companies, plans, desktop app and support.
9 pages
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Create an account, sign in and reset your password
How to create a Nanus cloud account, sign in with email and password, choose a secure password, reset it if you forget it and change it.
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Turn on two-step verification (2FA)
Protect your account with a 6-digit code from an authenticator app on top of your password, plus recovery codes.
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Sign in with a passkey (fingerprint, face or PIN)
Add a passkey to sign in to Nanus without a password, using the fingerprint, face or PIN of your phone or computer.
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See and sign out signed-in devices
Check which devices your Nanus account is open on and remotely close the session on a lost phone or a shared computer.
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Work in several companies with one account
How to switch between companies with a single Nanus account, how to join another company through an invitation and what stays separate.
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Plans, free trial and subscription
Nanus plans, the documents included, the free trial, how to pay by card or bank transfer and how to activate the desktop app licence.
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Connect the desktop app to your cloud account
Connect the Nanus desktop app to your cloud account to work on the same data as browser and smartphone, and go back to the computer’s data anytime.
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Desktop app automatic updates and early access
How the Nanus desktop app downloads and installs new versions by itself, how to update straight away and how to get preview versions early.
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Install the Nanus desktop app
Download and install Nanus on Windows, macOS or Linux: which file to choose, how to verify it and what happens the first time you start it.