Hai un antivirus installato?
Se si:
-Disabilita il "ripristino automatico" (Windows Me/XP).
. basta cliccare col tasto destro su risorse di sistema
. andare su proprietà
. andare su ripristino automatico sistema
. andare su disattiva
. andare su ok
- Aggiorna le definizioni dei virus
- Fai ripartire il computer in modalità provvisoria
.basta riavviare il computer premendo il tasto F8 all'accensione
svariate volte fino all'apparirire di un menu, scegliere modalità
provvisoria, premere invio
- Fai una cmpleta scansione dei virus e rimuovi tutti i file che vengono riconosciuti come W32.Spybot.Worm.
Cancella il valore zero nel registro
Cancella i file con zero bytes nella cartella Startup
5. Per cancellare il valore zero dal registro
WARNING: Symantec strongly recommends that you back up the registry before making any changes to it. Incorrect changes to the registry can result in permanent data loss or corrupted files. Modify the specified keys only. Read the document, "How to make a backup of the Windows registry," for instructions.
Click Start, and then click Run. (The Run dialog box appears.)
Type regedit
then click OK. (The Registry Editor opens.)
Navigate to the key:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
In the right pane, delete any values that refer to the file name that was detected as infected with W32.Spybot.Worm.
Navigate to the following key:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\
RunOnce
In the right pane, delete any values that reference the file name in step d.
Navigate to the following key:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\
RunServices
In the right pane, delete any values that reference the file name in step d.
Navigate to the following key:
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
In the right pane, delete any values that reference the file name in step d.
Exit the Registry Editor.
6. To delete the zero-byte files from the Startup folder
Follow the instructions for your version of Windows:
Note: There may be legitimate files on your system that start with "tftp." Delete only the zero-byte files from the Startup folder.
To delete zero-byte files in Windows 95/98/Me/NT/2000
On the Windows taskbar, click Start > Find (or Search) > Files or Folders.
Make sure that "Look in" is set to (C
and that "Include subfolders" is checked.
In the "Named" or "Search for..." box, type, or copy and paste, the following file name:
tftp*.*
Click Find Now or Search Now.
Delete the files that are zero-bytes in size and contained within any folder whose name ends with "Startup."
Per cancellare il file con zero byte su XP
On the Windows taskbar, click Start > Search.
Click "All files and folders."
In the "All or part of the file name" box, type, or copy and paste, the following file name:
tftp*.*
Verify that "Look in" is set to "Local Hard Drives" or to (C
.
Click "More advanced options."
Check "Search system folders."
Check "Search subfolders."
Click Search.
Delete the files that are zero-bytes in size and contained within any folder whose name ends with "Startup."