If the tax-controlled computer is broken, it will be easy. The current tax controller has a storage function, which can store the information of 10 years, so even if the data in the computer is gone, it's okay. First, install the tax control software. There is a system maintenance in the tax control system, and then click Data Recovery. There will be a lot of backup time at this time, so you can choose the latest date. This is automatically backed up monthly, once a month. After restarting, click the invoice to repair, so it will be the same as before, and there will be no data loss. If it won't happen again, you can refer to this, tax control maintenance skills.