If you have tried to install Bookshelf on a Windows 7, 8, or 10 system and have received an Invalid Signature or Corrupt Installer error please follow these steps to install Bookshelf on your PC.
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Download Bookshelf for Windows
Click on the Download button.
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Save Installer to your computer
When prompted click the Save button. Once the Installer has been downloaded, click the Open Folder button to be taken to your download folder.
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Run Installer as Administrator
Right click on the Bookshelfsetup.exe and choose Run as Administrator from the menu.
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Install Bookshelf
The installer will launch and from here you can install Bookshelf as you normally would, click here for instructions on installing Bookshelf, start at Step 2.
