can't get past startup repair

[del32]

I downloaded avast yesterday on my win7 laptop did updates and ran it it suggested a start up repair before windows starts up so i restarted my comp. It started the repair

but it says startup repair could not automatically repair this comp  and shuts down the comp.

i have tried system restore but it says a system restore point has not been created  on this comps system drive   and  i can't  seem to get into safe mode to get around it and unistall pressing f5 just brings up a window that says start up windows 7 or doing a mem diagnostics

how can i get around this problem.

[Pondus]

but it says startup repair could not automatically repair this comp  and shuts down the comp.

repair what....did it detect anything ?


what antivirus did you have before installing avast ?
did you uninstall it before installing avast ?

[del32]

it detected a rootkit  and i have avg and ccleaner and no i didn't uninstall them

[Pondus]

NEVER install multiple AV programs....it will give you all kind of windows errors and false positive detections
CCleaner is not a antivirus.......AVG is, and should have been removed before install

it detected a rootkit

OK i will notifie the removal expert, essexboy...see if have a way around this

[essexboy]

When the startup repair fails what cause does it give ?

[del32]

 if you recently attached a device to the computer such as a camera or portable music player remove it and restart your computer.  if you continue to see this message contact your system admin or comp manufacturer for assistance.


i have no devices plugged in other than my wireless  mouse.


this is what it says when i  click view diagnostic and repair details


Number of repair attempts:1
session details.

system disk= \device\harddisk0
windows directory = C:\windows
autochk run = 0
number of root causes = 1

Test preformed:
Name:check for updates
results completed successfully. error code = 0x0
time taken = 0ms

name: system disk test
results: completed successfully error code = 0x0
time taken = 0ms

name: disk failure diagnosis
results: completed successfully  error code = 0x0
time taken: = 171ms

name: disk metadata test
results: completed successfully error code = 0x0
time taken: = 63ms

name: target os test
results: completed successfully. error code = 0x0
time taken: 171ms

name: volume content check
results: completed successfully error code  = 0x0
time taken: = 0ms

name: boot manager diagnosis
results: completed successfully error code = 0x0
time taken: = 0ms


name: system boot log diagnosis
results: completed successfully error code = 0x0
time taken: = oms

root cause found:
boot manager failed to find OS loader

repair action: file repair
result: failed error code = 0x490
time taken: = 6724ms

repair action: boot configuration data store repair
result: failed error code = 0x490
time taken = 172ms

[essexboy]

root cause found:
boot manager failed to find OS loader

Do you have the windows CD

On the startup/recovery screen select command prompt

Select Repair my computer

 Select Command prompt

 
Type in the following

bootrec /fixmbr
 
then
 
bootrec /fixboot

[del32]

i have the windows 7 recovery media for windows 7 products disk  that came with comp  will try  command prompt now.

[del32]

ok i  did the command prompts you gave and it said


the operation was completed successfully.

[essexboy]

Does it now reboot ?

If not we will have to rebuild the BCD

[del32]

i restarted it  and it is now  scanning and at 50% done seems to be working like it is supposed to be. i will let you know if it alkl works out


ty for the help

[essexboy]

No problem - I will wait to see how it goes

[del32]

It's currently at 60%, doing a full scan. If you have other things to do please don't feel like you have to stay for me. Again thank you for all the help.

[essexboy]

No problem - I am a bit of a lurker

Gives me something to do whilst my system is backing up 

[wssddfredf]

guys i fking hate bsod
wasted 2 hours trying to find a solution
posting this cause u dont
if the above two commands dont work try this


Fix: Win7 keep on go into StartupRepair / boot manager failed to find os loader

Solution:


To run the Bootrec.exe tool, you must start Windows RE (Window Recovery Console). To do this, follow these steps:
Put the Windows Vista or Windows 7 installation disc in the disc drive, and then start the computer.
Press a key when you are prompted.
Select a language, a time, a currency, a keyboard or an input method, and then clickNext.
Click Repair your computer.
Click the operating system that you want to repair, and then click Next.
In the System Recovery Options dialog box, click Command Prompt.
Type Bootrec.exe, and then press ENTER.

Bootrec.exe options
The Bootrec.exe tool supports the following options. Use the option that is appropriate for your situation.
Note: If rebuilding the BCD does not resolve the startup issue, you can export and delete the BCD, and then run this option again. By doing this, you make sure that the BCD is completely rebuilt. To do this, type the following commands at the Windows RE command prompt:
bcdedit /export C:\BCD_Backup
c:
cd boot
attrib bcd -s -h -r
ren c:\boot\bcd bcd.old
bootrec /RebuildBcd



for more info goto this site: http://itweirdo.blogspot.in/2012/04/fix-win7-keep-on-go-into-startuprepair.html