Windows 7 Forums

Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.


Windows 7: My computer reads missing operating system

12 Oct 2012   #21
gregrocker

 

Sel Disk first, then sel each Vol to see which is marked Active.

Continue the commands Kaktussoft gave you to determine which partition is marked Active then run 3 Startup Repairs no matter what it reports.

If you didn't save a Win7 backup image that option is not available to you. But REcovery may run from its hotkey or by marking it Active. But work through the steps I gave you earlier first to do everything possiblee to rescue your install unless you're ready to rescue your files and skip to running Recovery or Reinstall.


My System SpecsSystem Spec
.
12 Oct 2012   #22
Kaktussoft

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
 
 

Quote   Quote: Originally Posted by gregrocker View Post
Sel Disk first, then sel each Vol to see which is marked Active.

Continue the commands Kaktussoft gave you to determine which partition is marked Active then run 3 Startup Repairs no matter what it reports.

If you didn't save a Win7 backup image that option is not available to you. But REcovery may run from its hotkey or by marking it Active. But work through the steps I gave you earlier first to do everything possiblee to rescue your install unless you're ready to rescue your files and skip to running Recovery or Reinstall.
@greg: "missing operating system" is a message that comes from MBR
Reason: corrupt mbr code, or maybe no active partition.

startup repair should fix that I know. I hope he can access the recovery environment
My System SpecsSystem Spec
12 Oct 2012   #23
gregrocker

 

Yes, Kaktussoft, sorry for interfering as you correctly tried to ascertain that OS partition was marked Active.

Then if Startup Repair x3 doesn't work he can try to manually use the Bootrec.exe tool in the Windows Recovery Environment to troubleshoot and repair startup issues in Windows, run Recovery if necessary marking it Active first, or Clean Reinstall - Factory OEM Windows 7 after rescuiing files.

I only wanted to make sure he has all the steps up front, including to try to get disk to boot since System Recovery Options sometimes do not work as well from F8 and require the Installer or Repair disk.
My System SpecsSystem Spec
.

12 Oct 2012   #24
Victor staggers

 
 

I'm new to this I don't know how to select disk and then view to see if its active can you be a little more specific plz?
My System SpecsSystem Spec
12 Oct 2012   #25
Kaktussoft

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
 
 

Quote   Quote: Originally Posted by gregrocker View Post
Kaktussoft, I'm sorry for interfering as you correctly tried to ascertain that OS partition was marked Active. Then if Startup Repair x3 doesn't work he can try to manually use the Bootrec.exe tool in the Windows Recovery Environment to troubleshoot and repair startup issues in Windows .

I only wanted to make sure he has the steps to try to get disk to boot since System Recovery Options sometimes do not work as well from F8 and require the Installer or Repair disk.
No problem Greg.. any information is welcome. But I think bootrec doesn't work, because he hasn't selected a win7 os in the list. At least that's what I read between the lines.

Anyway... bootsect works as well
My System SpecsSystem Spec
12 Oct 2012   #26
Kaktussoft

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
 
 

Quote   Quote: Originally Posted by Victor staggers View Post
I'm new to this I don't know how to select disk and then view to see if its active can you be a little more specific plz?
Code:
diskpart
sel  vol c
det part
sel vol  d
det part
exit
My System SpecsSystem Spec
12 Oct 2012   #27
Victor staggers

 
 

Kaktussoft can u continue to help me resolve my issue? My computer reads missing operating system-imageuploadedbyseven-forums1350081538.961155.jpg this is what I'm seeing on my screen


My System SpecsSystem Spec
12 Oct 2012   #28
Kaktussoft

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
 
 

sel vol c
instead of
vol c
!!!
My System SpecsSystem Spec
12 Oct 2012   #29
Victor staggers

 
 

My computer reads missing operating system-imageuploadedbyseven-forums1350081785.471451.jpg


My System SpecsSystem Spec
12 Oct 2012   #30
Victor staggers

 
 

Ok I got it vol c not active
My System SpecsSystem Spec
Reply

 My computer reads missing operating system




Thread Tools Search this Thread
Search this Thread:

Advanced Search




Similar help and support threads
Thread Forum
Missing Operating System :(
HI all, I have a laptop and after 1 month i have open my Laptop coz i was on vacation ! Today morning when i have open my laptop everything was ok till windows logo appears and then only black screen i was waiting for desktop to show up but after few minutes a blue screen flash and system got...
General Discussion
Missing operating system" error massage when system starts
Hai, "Missing operating system" massage is coming when i start my system and i am not able to start. I think because , i had given "mark partition as active" option for one hard dive (E) in disk management when last time i opened. it did not have any data. i did not know, this will make any...
General Discussion
Missing Operating System?
Ran Ccleaner last night on windows 7 64 and everything was fine. Then this morning when the computer re-started, it says missing operating system and windows will not start or read any discs. checked to make sure CD was 1st in the boot menu. And I am currently running diagnostics on my hard drive....
General Discussion
Missing Operating System
Hello This is my first post on the forum so excuse me if i make any mistakes :) Last night, i let my PC on to run a disk defragment and when i woke up i realized that it was crashed, my monitor was on but i couldn't see anything on the screen so i restarted the PC. Then i got the error...
BSOD Help and Support
operating system is missing
Hi everyone. I was trying to do a system restore and I do not have any restore points. That is not the issue. The problem is when I go into advanced system properties I have two c drives. One is active the other one is missing. I have uploaded a picture to illustrate what I am saying. The PC...
Installation & Setup
Missing operating system
Hi all, I have this message on my laptop. Unfortunately I bought it with Widows 7 instaled and no cd or dvd was given to me. I was told I can burn a cd on my own whih I never did. So is there anything I can do in that case? Please help me!
BSOD Help and Support


Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 20:59.

Twitter Facebook Google+



Windows 7 Forums

Seven Forums Android App Seven Forums IOS App