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Windows 7: Windows 7 startup repair

05 Jan 2012   #11
gregrocker
Microsoft MVP

 

What were the results of these steps?

Quote   Quote: Originally Posted by gregrocker View Post
Another option which just worked for someone with that infection is booting Microsoft Standalone System Sweeper.

Then once Win7 is disinfected if it won't start, run Startup Repair repeatedly from System Recovery Options.

Startup Repair should automate SFC but if not run it from Options Command line: SFC -SCANNOW Run in Command Prompt at Boot

If you can get into Desktop or Safe Mode at any point, run Malwarebytes full scan, replace your AV with Microsoft Security Essentials and run a Full Scan.
Before giving up you should make sure Win7 or it's 100mb System Reserved boot partition (preferred) are marked Active, which they must be before Startup Repair will repair/rewrite the System boot files to them. Partition - Mark as Active (Method Two)

Then run Startup Repair - Run 3 Separate Times.

You can also use free Partition Wizard bootable CD to mark one of these partitions Active, then click on the Disk number to highlight it, from Disk tab select Rebuild MBR, Apply. This may preclude the need to run the Repairs.

You can copy out your files this way: Copy & Paste - in Windows Recovery Console. They should be immediately scanned with Malwarebytes and your AV.

Then follow these steps to get a perfect clean reinstall: Reinstalling Windows 7


My System SpecsSystem Spec
.
05 Jan 2012   #12
jumanji

Windows 7 Home Premium 32 bit
 
 

Quote   Quote: Originally Posted by khanhoa View Post
..... Any other suggestion before I ask my son to reinstall Windows 7. I do not really want to do that since there may have been other things that he has installed in the computer.
Thanks for the help in advance...
Your son should be able to back up any important data he may have before a reinstall.

He may run a live CD and access the non-bootable drive for that. This if he is not comfortable with gregrocker's Recovery Console > Copy and Paste suggestion.

Have a look at my thread Lucid Puppy way to recover files from a non-bootable computer

If your original Windows Media does not have SP1, you may download your version of Windows with integrated SP1 from here . That will save you downloading a lot of pre-SP1 updates.
My System SpecsSystem Spec
06 Jan 2012   #13
Kaktussoft

Microsoft Community Contributor Award Recipient

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

Are you sure the restart message came from Microsoft Security Essentials? Ik think it was coming from a virus and was a fake message.

Did you try "system restore" in recovery environment? Advanced Boot Options enter repair my computer. Go back a few days in time when you didn't have the problem.

Also tell me what happens if you select "safe mode" in advanced boot options.
My System SpecsSystem Spec
.

06 Jan 2012   #14
khanhoa

Windows 7 Pro 64 bit
 
 

When I selected "Safe Mode," it got stuck at "classpnp.sys" Then it went back to the same problem. Apparently there must be a driver that it was looking for; and I dont know what it was. Can you share any information?
My System SpecsSystem Spec
06 Jan 2012   #15
Kaktussoft

Microsoft Community Contributor Award Recipient

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

Quote   Quote: Originally Posted by khanhoa View Post
When I selected "Safe Mode," it got stuck at "classpnp.sys" Then it went back to the same problem. Apparently there must be a driver that it was looking for; and I dont know what it was. Can you share any information?
I thought it entered "startup repair" automatically????? This is just a crash or hang. Windows does start

Did you try "system restore" in recovery environment? Advanced Boot Options enter repair my computer. Go back a few days in time when you didn't have the problem.
My System SpecsSystem Spec
06 Jan 2012   #16
Kaktussoft

Microsoft Community Contributor Award Recipient

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

Quote   Quote: Originally Posted by khanhoa View Post
When I selected "Safe Mode," it got stuck at "classpnp.sys" Then it went back to the same problem. Apparently there must be a driver that it was looking for; and I dont know what it was. Can you share any information?
after "classpnp.sys" it hangs or crashes??
My System SpecsSystem Spec
06 Jan 2012   #17
khanhoa

Windows 7 Pro 64 bit
 
 

Yes, I did; but it failed to restore to the date I chose. Now I cannot get to that screen any more.
It did not crash. It got hung up at "classpnp.sys for a min or so; and then it restarted by itself. From there the same problem occured.
My System SpecsSystem Spec
06 Jan 2012   #18
gregrocker
Microsoft MVP

 

You can run System Restore from System Recovery Options on the Installation DVD or System Repair Disk which sometimes work better than on Advanced Boot Options
My System SpecsSystem Spec
06 Jan 2012   #19
khanhoa

Windows 7 Pro 64 bit
 
 

Thanks for the info. I will try that and see what happens. I will keep you posted. Btw, what other option do I have; if doing system restore via system repair disc still does not let me do that.
My System SpecsSystem Spec
06 Jan 2012   #20
gregrocker
Microsoft MVP

 

Well actually I was still waiting to hear back on these steps from yesterday:

Quote   Quote: Originally Posted by gregrocker View Post
What were the results of these steps?

Quote   Quote: Originally Posted by gregrocker View Post
Another option which just worked for someone with that infection is booting Microsoft Standalone System Sweeper.

Then once Win7 is disinfected if it won't start, run Startup Repair repeatedly from System Recovery Options.

Startup Repair should automate SFC but if not run it from Options Command line: SFC -SCANNOW Run in Command Prompt at Boot

If you can get into Desktop or Safe Mode at any point, run Malwarebytes full scan, replace your AV with Microsoft Security Essentials and run a Full Scan.
Before giving up you should make sure Win7 or it's 100mb System Reserved boot partition (preferred) are marked Active, which they must be before Startup Repair will repair/rewrite the System boot files to them. Partition - Mark as Active (Method Two)

Then run Startup Repair - Run 3 Separate Times.

You can also use free Partition Wizard bootable CD to mark one of these partitions Active, then click on the Disk number to highlight it, from Disk tab select Rebuild MBR, Apply. This may preclude the need to run the Repairs.

You can copy out your files this way: Copy & Paste - in Windows Recovery Console. They should be immediately scanned with Malwarebytes and your AV.

Then follow these steps to get a perfect clean reinstall: Reinstalling Windows 7
My System SpecsSystem Spec
Reply

 Windows 7 startup repair




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