Cannot boot Windows after installing Ubuntu

[ramiroflores]

Can anyone help me with this error?

I installed dual boot ubuntu on windows OS, after installing but I can't boot windows again it shows an error

error: file '/efi/microsoft/boot/bootmgfw.efi' not found

Can anyone help me what to do?

[keme]

This forum site targets user problems with OpenOffice and related office software suites, not operating system software. It is highly unlikely that your issue is related to the existence, or not, of OpenOffice/LibreOffice on your system, either in Windows or Linux volumes.

This question is better posed to the Ubuntu site where you acquired your linux install. If the dual boot setup fails in certain situations, they need to know about it and fix it, so it doesn't harm other people's installs.

IOW: Addressing the proper target is more likely to give you the help you need, and may also help others.

[Hagar Delest]

Hi and welcome to the forum!

I have moved your topic to the General section since it has nothing to do with OpenOffice.
You may have better results in dedicated forums (especially the Ubuntu ones).

You need to provide more information. What option have you used when installing Ubuntu? I do that every 6 months for each new release and IIRC, you have to select the installation in parallel with other operating systems. If you install as the single system, then you won't be able to dual boot.
As a first step, you could try to reinstall Ubuntu and see if installing with the option "in parallel" (or something like that) gives you access again to your Windows partition. If the partition has been deleted by the Ubuntu installation (if you told it would be the only operating system on the drive), then few chance to recover anything. You'll have to reinstall Windows first I guess.

[RoryOF]

You will get more explicit help by checking postings on an ubuntu support forum, such as
https://ubuntuforums.org