Question about Toshiba Satellite M45X-S331 Notebook

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How can i reinstall the missing operating system

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Press the on button and when the BIOS menu shows press F2.
Set the first boot device to DVD/CD Rom.
Put your restore or system disk in the DVD drive and boot your laptop. It will ask a couple of questions that you will navigate your way through and at the end, you will have a new system. All you need to do then is install the drivers from and the updates from your OS provider and restore your backup disks with your data on.
Hope that helps.

Posted on Dec 31, 2010


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Posted on Jan 02, 2017


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Message says operating system is missing?

your operating system is missing please reinstall your opreating system]

step1 insert opreating system cd drive

step2 press f8 and select boot option cd/dvd and press enter

step3 read instructions

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On startup I get this message, installation C:\program Files\Mindscape\AGCraft\pminst.DAT is bad or missing. What do I need to do?


The only solution for corrupted or missing file from operating system is either repair or reinstall the operating system.

In repair mode, it will not delete any files or softwares in your computer. Just mere repairing of operating system.

In reinstallation mode, it will wipe out all your files and softwares and I suggest you back up your files before running the reinstallation.

Here is the blog on how to reinstall the operating system with video. I mention also about the how to repair the OS.

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1. i hope you have backed up of all your data from the HDD.
2. format the HDD and reload the OS - but this time, make sure that you have atleast 2 partitions.
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It is an error message meaning your missing your operating system or your operating system is corrupt.

An easy way to fix it is by reinstalling the OS but be warned you will lose your data on the hard drive.

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NTDLR missing

Hi Friend,

NTLDR file is the part of operation system,this is hidden file of window operating system,some time if system restart between the work or some one delete this file,in this condition you need to reinstall the operation system,please reinstall the window operating system.
If you ned any help for installation .......please tell me...

Feb 03, 2010 | Toshiba Satellite U205-S5002 Notebook

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Says it is missing reinstall

As you have not mention what file is missing or the missing files is related to some application or Operating System, I'm answering the question by thinking that you need to reinstall the Operating System.

If you need any kind of help regarding system re-install,then follow the link below.

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Sounds like missing files or corrupted files. Try a complete reinstall or starting in safe mode...

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Google Desktop

Un-install it and re-down load from a "trusted" website directly from Google. Then re-install. Should work.

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