VSS and SPP problem when ran backup to external hard drive and Volume Shadow Copy Ser

Dear friends,
I encountered a problem that i can not backup my system by using backup and restore function in win7. I had it done before and i have a backup image in my external hard drive. Several days ago the system tried to backup again due to the set backup schedule, but it failed all the time.
Firstly popped up a window saying that: "A shadow copy could not be created. Please check "VSS" and "SPP", application event logs for more information. Details: A Volume Shadow Copy Service component encountered an unexpected error. Check the Application event log for more information. " and offering two options: 1. Try to run backup again, 2. Change backup settings. Because failed for the first one, so i clicked on the second one and another pop up:
"The backup application could not start due to an internal error: A Volume Shadow Copy Service component encountered an unexpected error. Check the Application event log for more information. (0x80042302)."
I searched the internet for solution telling that, like, start Volume Shadow Copy Service in Service, increase the space in disks for system protection, and reboot the computer, etc. I think i tried that all, but the problem is not solved at all.
Also, i tried restoring the system by using restore point, it failed again.
Is there anyone could help? Very appreciated!

You have to go into the application event log and get another error code.

According to this you have to keep going till you get a final code.
http://blogs.technet.com/b/filecab/a...pp-errors.aspx

There example was for not enough hard drive space and it made me wonder how much space you have left on your HD?

My OS drive still has more than 30GB space left, and the external drive has 295GB left.

Then you will need to follow the instructions on that website and keep searching deeper and deeper into the errors until you find it.

I found these. I don't know whether these are deep enough.
VSS error:ID 13
Volume Shadow Copy Service information: The COM Server

with CLSID {faf53cc4-bd73-4e36-83f1-2b23f46e513e} and

name VSSEvent cannot be started. [0x80070424, The specified

service does not exist as an installed service.]

Operation:
Gathering Writer Data
Executing Asynchronous Operation

Context:
Execution Context: Requestor
Current State: GatherWriterMetadata


VSS error:ID 8193
Volume Shadow Copy Service error: Unexpected error calling

routine CoCreateInstance. hr = 0x80070424, The specified

service does not exist as an installed service..

Operation:
Gathering Writer Data
Executing Asynchronous Operation

Context:
Execution Context: Requestor
Current State: GatherWriterMetadata

VSS error:ID 12342
Volume Shadow Copy Error: An error 0x80042302, A Volume

Shadow Copy Service component encountered an unexpected

error.
Check the Application event log for more information.
was encountered while trying to initialize the Registry Writer.

This may cause future shadow-copy creations to fail.

VSS error:ID 12346
Volume Shadow Copy Error: An error 0x80042302, A Volume

Shadow Copy Service component encountered an unexpected

error.
Check the Application event log for more information.
was encountered while trying to initialize the Registry Writer.

This may cause future shadow-copy creations to fail.

VSS information: ID 8224
The VSS service is shutting down due to idle timeout.

ID 13 says some system services are not started that it requires
http://technet.microsoft.com/en-us/l...8WS.10%29.aspx

follow the instructions there to enable the 3 services and to check the VSS providers are working properly

Thank you TrainableMan!
I don't have the "COM+ Event System" service in my Services window, but I have "COM+ System Application". Are they the same? And I can not get "COM+ System Application" service started saying that "Windows could not start the COM+ System Application service on Local Computer. Error 1068: The dependency service or group failed to start."
So far so frustrated

Maybe try setting it to automatic? Reboot. Then try backup. See if you get the same or a new error or Microsoft-forbid it works.

(I've never had this problem. I'm just searching the web and now I'm guessing.)

Just the same TrainableMan.

Either malware or user error deleted services from the machine.

Repair install will fix it:

http://www.sevenforums.com/tutorials...r-install.html

Before doing so, I'd scan with Malwarebytes to see if the machine is clean or not.