if you got this message when try delete a file :

- Cannot delete file: Access is denied
- There has been a sharing violation.
- The source or destination file may be in use.
- The file is in use by another program or user.
- Make sure the disk is not full or write-protected and that the file is not currently in use

try use Unlocker to fix these problem and you can delete the file after that

CMOSSave CMOSRest CMOSChk restore corrupted CMOS from backup and check
that CMOS has not been tampered with. Featured in Karen Kenworthy’s
Windows Magazine column October 1994 and April 1995, and Fred Langa’s in
1999. It has also been bundled on the CDs that come with various books.

To install, extract the zip download with WinZip, (or similar unzip utility) into any directory you please, often J:\ — ticking off the “user folder names” option.

Capabilities and requirements:
Supported storage devises:

* ATA/SATA HDD.
* SCSI HDD.
* USB HDD (see Appendix A).
* FireWire or IEEE 1394 HDD (see Appendix A).
* RAID volumes made of ATA/SATA/SCSI HDDs (surface tests only).
* USB Flash (surface tests only).

Storage device tests:

* Verification in linear mode.
* Reading in linear mode.
* Erasing in linear mode.
* Reading in Butterfly mode (synthetic random read).

S.M.A.R.T.:

* Reading and analyzing S.M.A.R.T. parameters from ATA/SATA/USB/FireWire HDD.
* Reading and analyzing Log Pages from SCSI HDD.
* S.M.A.R.T. tests running on ATA/SATA/USB/FireWire HDD.
* Temperature monitor on ATA/SATA/USB/FireWire/SCSI HDD.

MyDefrag is a disk defragmenter and optimizer (a maintenance utility to make your harddisk faster) for Windows 2000, 2003, XP, Vista, 2008, and for X64. It is freeware, no time limit, fully functional, no advertisements. Fast, low overhead, with many optimization strategies, can handle floppies, USB disks, memory sticks, and anything else that looks like a disk to Windows. Included are a set of easy to use scripts for endusers, a scripting engine for demanding users, a screensaver, and a combined Windows plus commandline version that can be scheduled by the Windows task scheduler or for use from administrator scripts.