I've run the bullguard antivirus software, combofix, and hijackthis.

 

When I ran the bullguard software, it found and fixed over 4,500 problems.

 

Combofix, it tells me that it cannot find c:\windows\rededit.exe and cannot continue.

 

When running hijackthis, it will randomly freeze, then a window will pop up and tell me that hijackthis has encountered an error, and must be closed.

 

 

Let´s see if you can use this scannner  ->

 

Download Deckard's System Scanner http://www.techsupportforum.com/sectools/Deckard/dss.exe
to your Desktop. Note: You must be logged onto an account with administrator privileges.

Making sure dss.exe is directly on your desktop, go to Start - Run, and copy/paste the following (then press OK):

 

When the DSS Configuration display opens click the "Check All" button. Next, Under Main Log, uncheck the following:

System Restore
Temp Cleanup
Process Modules

Then under Options, place a check next to the following:

 

Don't make any other changes at this time. Then click the "Scan!" button to start the scan.

 

Once the scan has completed a textbox will appear - copy/paste those contents back here (main.txt).

 

 (The log can also be found in the C:\Deckard\System Scanner folder)

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Go to http://www.sarc.com/avcenter/FixSirc.com

Download the Fixsirc.com file to a convenient location, such as your download folder or the Windows desktop. If you are on a network, the removal tool should be applied on all computers, including the server.
To check the authenticity of the digital signature, refer the section The digital signature.
Close all programs before running the tool, including any antivirus scanners.

 

 

Reboot, and see if You can run combofix ?

 

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Download regallow.exe from here and save it to your desktop:

regallow.exe

Confirm that the file regallow.exe now resides on your desktop, double click on the regallow.exe program. When the program launches, click on the Enable Registry Tools button. When it says the tools are enabled, click on the OK button to exit the program.

 

Reboot, and see if you can run combofix now

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Looks like your profile are corrupted.  Try this ->

Log on as the Administrator or as a user with administrator credentials.
2. Click Start, and then click Control Panel.
3. Click User Accounts.
4. Click the Advanced tab, and then click Advanced.
5. In the left pane, click the Users folder.
6. On the Action menu, click New User.
7. Enter the appropriate user information, and then click Create.

You should be able to run combofix now

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sfc /scannow

This command will immediately initiate the Windows File Protection service  to scan all protected files and verify their integrity, replacing any files with which it finds a problem.

Reboot and tell how things re running now

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