Now-a-days many computer users are facing problems regarding viruses and worms, These worms may be very harmful as well as computer speed consuming too.
Second Step to Recover Data From Infected USB/Removable Disk Inorder to Recover Data from such an infected USB go to Start Menu and in Accessories go to Command. USB Drive Antivirus provides comprehensive protection against any virus, worm trying to attack via USB drive. When an USB device is inserted into your computer, USB.
Tips for USB pen drives. Under Windows XP writing of lots of small files to a 'Removable' pen drive is extremely slow, while it's fast under Windows 2. Writing large files there is no appreciable difference. Obviously Windows XP doesn't enable a write cache for USB drives that appear as 'Removable'. The option "Enable write caching on the disk" is grayed out for USB drive (this mean the hardware cache of the drive) and the removal policy setting ('Optimize for quick removal' or 'Optimize for performance') doesn't seem to make any difference, except that the latter enables the user to format 'Removable' USB drives with NTFS. But with NTFS Windows XP enables a write cache, writing small files becomes lightning fast. Update Feb 2. 01.
Trouble: In the past we had received so many problems from the readers who have a problem in copying files on their USB portable devices like pen drives. Automatic actions on plug in and out My USB Drive Letter Manager can execute AutoRun events on arrival of a drive, on removal request and after removal. Kingston Pen drive recovery software is an ultimate tool to recover deleted or inaccessible data. Restore lost data from Kingston flash drive formatted using FAT32. How to remove virus in pen drive manually? Note: Manual removal of pen drive viruses may be difficult, as the removal process requires knowledge of the operating.
When I insert my USB drive to my XP laptop, the Autorun/Autoplay dialog box giving me a list of options no longer comes up. Why not? When I put it in nothing happens. UPDATE October 8, 2009: New version 1.0.1.4 released. The Microsoft Windows Operating Systems use the AUTORUN.INF file from removable drives in order to know which. Here is a way to hack passwords using a USB pen-drive. Using a few password recovery tools and a USB pen-drive you can create your own rootkit to hack passwords.
I was pointed to the fact that by means of the registry value Write. Cache. Enable. Override a write cache can be forced for any USB drive, even FAT formatted removeable drives. And it indeed works! I have made a litte tool: USB- Write.
Cache. So, NTFS is not essential for having a write- cache. Use NTFS anyway for USB flash drives?
Advantages: Write- cache on all computers. NTFS stores small files together with the directory entry, this safes write accesses.
NTFS supports file compression, this safes write accesses too (for compressible files only). FAT/FAT3. 2 becomes linear slower with the number of files in folder, NTFS does not. FAT/FAT3. 2 is limited to 6. NTFS supports files > 4. GB. But actually NTFS isn't suitable for flash medias because as journalling file system it has some overhead that wears out flash memory. But Windows XP optimizes and bundles write accesses to pen drives only when they are NTFS formatted, so I see NTFS as the right choice. Furthermore NTFS stores small files together with the file information so they are written into the same flash block which is the best that can happen.
A drawback with NTFS and flash medias is that NTFS saves the access time when you read a file, so a simple read access causes flash wear out. In fact it is not as dramatically because Windows writes the data not immediately onto the media. It does it when it has to update something else there, when one hour is over on when a media is unmounted. Actually I've never seen XP writing a last access time to a USB drive.
The last access time is also updated on 'directory listing' (whatever this means). This can be disabled, unfortunately for all drives only: Create a new DWord value under [HKEY_LOCAL_MACHINE\SYSTEM\Current. Control. Set\Control\File. System] called. Ntfs. Disable. Last. Access. Update and set it to 1.
Or download the following REG file and doubleclick it: Ntfs. Disable. Last. Access.
Update. 1. reg. Since Vista this can be configured more detailed. Ntfs. Disable. Last. Access. Update at Microsoft. To format a pen drive with NTFS there is no need to switch to 'optimize for speed'.
Using the commandline tool CONVERT you can convert a FAT formatted drive to NTFS. Sample. convert u: /fs: ntfs. But XP's CONVERT creates a NTFS with a cluster size of 5. Bytes if the FAT clusters are not 4.
K aligned. If the drive is FAT formatted under XP, then the clusers are 4. K aligned and XP's CONVERT works fine. W2. K's CONVERT seems to creates 5.
Bytes clusters in any case. Using the Windows format dialog you can choose: 4. Bytes is the defaut. With a cluster size above 4. Bytes file compression and encryption become unavailable.
Of course a NTFS formatted drive doesn't work under Windows 9. ME. Furthermore devices with a standalone functionality as MP3 players or image tanks may not work with NTFS. If both, format and convert fail while formatting with FAT/FAT3.
The NTFS file system is written into the middle of the drive while the FAT is written to at the begin of the drive. So, if the drive is fake then the NTFS file system is written into non existent memory. Newer fake drives are made more clever, the first write accesses go to existing memory, so formatting with NTFS does not fail.
But as soon as more data then really build in is wriiten in sum, the problems begin. The effect of having a write cache or not depends on the USB drive: Hard drives have an 2 or 8 MB of cache RAM which prevents to much performance impact. Most USB flash have no such cache, so their access times are very important for their real live speed. By means of HD Tune you can check the read access times.
Here a screenshot of the bad example 'Corsair Flash Voyager' (2. GB) - have a look at the yellow dots above the diagram.. It's from 2. 00. 5, the current exemplars are better. To test the file cache behaviour I've made File. Cache. Test. It can read and write a test file using different flags for the API function Create.
File and using different block sizes. Remember the difference between writing a file for the first time and to an existing file: Writing the first time, the file size has to be adjusted after each block.
The most remarkable effects under XP are. FAT formatted removable USB drives. FAT formatted removable USB drives using a block size below 4. Bytes is cached, others are not (for NTFS drives the magic block size is about 5.
KB, under Windows 7 3. MB!). using flag FILE_FLAG_RANDOM_ACCESS causes a blows up of the file cache's working setusing flag FILE_FLAG_NO_BUFFERING is the most efficient way to read and write large files. USB drives the removal policies 'Optimize for speed' and 'Optimize for quick removal' have absolutely no effect on the cache's behaviour. Deactivate write- cache. There is no known way to deactivate a write cache if Windows decided to activate it, e. NTFS formatted drives there is always a write cache. On a FAT formatted drive a solution could be to turn a drive into a "removable" drive by setting the "removable media bit" (RMB) by means of a filter driver like the Hitachi filter drive but for the opposite purpose.
Autorun/autoplay Doesn't Work When I Insert A Usb Drive. Hi, No when i've got a DVD in the drive it recognises that it is a DVD. And no autoplay doesn't work for it either. Did you look at and select any options for what to do with it from the drop down?
Ie for a mixed cd/dvd, it's usually take no action or open in Windows Explorer. Those are the "handlers", and they can get messed up, especially if any software previously installed to handle certain media didn't remove it's handlers. Anyway, I can't help you with the usb, but for your cdrom drives, my personal preference was using the registry changes. I tried Tweak. UI, and a host of other tools for fixing auto play. They got rid of unwanted handlers easy enough, but did nothing to actually fix my auto play and give me back my missing blank cd and dvd movie option.
The registry changes (the one about winlogon) did it for me. Edit: I was typing while you were typing. Glad you got it fixed! Edited by mommabear, 0. April 2. 00. 8 - 0.