Depending on where the compass is located on the surface of the Earth the angle between true north and magnetic north, called magnetic declination can vary widely with geographic location. The local magnetic declination is given on most maps, to allow the map to be oriented with a compass parallel to true north.
2] KB2939087 recommends in case you are unable to install the Windows 8.1 Update package KB2919355 via Windows Update, then you should download and install the package manually. 3] If you receive Error 0x80071a91 when installing KB2919355 on Windows 8.1, Microsoft has released a patch to fix this issue.t should therefore first be installed on your system before your attempt to install Windows 8.1 Update or KB2919355. Go get it here if your computer does not have it. 1] If your Windows 8.1 Update has failed to installed, you need to clean up the corrupted installation.
To remove KB3035583, first open Windows Update and click âInstalled Updatesâ in the bottom-left corner. To quickly find KB3035583, you can sort by name. Once youâve located it, right-click and choose âUninstallâ.f you donât want this item on your system, we recommend removing the update altogether because we donât feel it is critical to upgrading to Windows 10, and even if it is, you can always go back on July 29 and reinstall it.