Solved error 0xe0ef0003 - bootmgr missing on windows

July 15, 2011 at 18:11:35
Specs: Windows 7

I have an HP Pavilion s5257c slimline computer with Windows 7 Home Premium. The computer was intermittently going to a blue screen and doing memory dumps randomly. This happened for several months. When I tried to do a full factory setting restore with previously created disks, the process would not work (error 0xe0ef0003). Ordered and tried the HP factory restore disks (5 total) with same results. Removed hard-drive and low level formatted the thing with several freeware programs. Still same results. Downloaded Win 7 Home Prem ISO and tried to install on re-formatted HDD. Win 7 could not install. Purchased a new WD green caviar HDD, reformatted, tried all same disks and methods described, still no luck. Have also tried the bootrec.exe fixes. No luck yet. Later found on HP forums about some type of video configurations incompatibility problem that results in the 0xe.. error when restoring image... too late I guess..... I am going nuts over this problem. Have been searching forums and trying new things and software for about 3 weeks now. Any help out there?? (before I toss the wretched thing out a window and get a MAC??

Thanks in advance for your help!!

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July 15, 2011 at 20:17:55
✔ Best Answer
You have a hardware problem. My first though would be your memory. Download Memtest86 ISO image and burn a bootable CD with it, boot to that and run through all tests. Any errors are not acceptable, if you get any errors or you get freezing or rebooting, then retest with only one stick of RAM at a time to find the bad stick. If one stick works clean but the other one does not then you found your problem. Run only the good stick until you can replace it, it will be slower but you will not have the problem. NOW if you identified the problem as memory you will still have to reload windows onto one of your hard drives, you can do this with only one stick of memory but it will be slow (your choice if you want to wait to replace the memory). Replace the memory with the exact same memory type, brand, speed, etc or replace them as a pair to maintain dual channel mode.

IF it turns out that the memory is not bad, you might have a power supply problem. Test the output voltages manually, read them out from your BIOS, or borrow a different power supply to test the theory. Report back the voltages if you are not sure if they are within spec's.

Post back results for more suggestions.

You have to be a little bit crazy to keep you from going insane.

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July 15, 2011 at 20:40:50
My friend, I greatly appreciate your help and suggestions. I will download the software and run the tests on the memory sticks. It might take me a couple days to report back, but I will report back the results. Thanks a lot for taking the time to help me! Have a great weekend!

Warm regards;


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July 15, 2011 at 23:13:56
How nice to get a "thank you"


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July 16, 2011 at 14:45:44
Ewen, not only a Thank you!! Very grateful for the help received!!

Fingers!! You hit the problem right from the start!! Thanks a bunch and I hope this helps other as well!

I followed your instructions and downloaded the MEMTEST86 program. Indeed! a bad memory stick was the problem. I am very grateful for your help! I am happy to report the bad stick was removed from the PC and I was FINALLY able to restore the PC to factory condition.

In fact, I am writing this response from it!! Needless to say, already ordered the memory sticks from Ebay, and expect to be in full swing soon.

Again, very grateful to you guys! This is the best PC forum indeed!! I have gotten quick and accurate response from you guys! Thanks a lot for the help and the opportunity to learn. Hope I can help other the same way (pay it forward!).

Warmest regards from Puerto Rico!


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July 16, 2011 at 21:07:40
You are quite welcome.
Further advice, try ordering from or, you will have more choices, get customer reviews on the product, get similar prices, and have the manufacturer's warranty if you ever need it (I have found most memory is warrantied for lifetime, either written or honored anyway with retail purchase receipt).

You have to be a little bit crazy to keep you from going insane.

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