> For the complete documentation index, see [llms.txt](https://helpcenter.xopero.com/xopero-one-en/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://helpcenter.xopero.com/xopero-one-en/common-issues/workstations-and-servers/unable-to-open-store-read-error.md). # "Unable to open store read" error ## Issue > It is not possible to browse or load backups from x86 and x64 operating systems in **Xopero ONE**. *** ## Cause If you are protecting both x86 and x64 operating systems, this message may appear when browsing the data storage. It is most likely caused by incompatibility with the **agent** application used to perform the backup. It is important to remember that backups created with the x86 **agent** (designed for x86 operating systems) can only be browsed and restored using the x86 **agent**. The same applies to backups created with the x64 **agent**, which require the x64 **agent** for browsing or restoration. **Any attempt to restore x86 backups with an x64 agent, or x64 backups with an x86 agent, will fail.** *** ## Resolution To restore data, you need to select the correct device for browsing the storage. Open the restore view, choose the data you want to restore, then click the **Change** button next to **Browsing backups with…** at the bottom. Select the device that matches the correct architecture. After making this change, you will be able to restore the data without any issues.