Hello
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(A). When deleting a file, the calculation time depends on not only the file size but the file number of its folder. It is recommended to separate to multiple sub-folders if you have a large number of video/music files.
In addition, the issue can be related to third-party codec’s or third-party components, especially file system filter drivers, such as anti-virus drivers.
You can boot the system into Safe Mode and have some tests. If Safe Mode works fine, you can then check the startup programs and loaded third-party services by running msconfig
Steps to boot to safe mode:
- Restart the computer.
- Immediately after the screen goes blank for the first time, or after the BIOS post ends.
- Start taping the F8 key repeatedly. The Windows Advanced Options menu appears.
(If the menu does not appear, restart the computer and try again. If the Keyboard has a F-Lock key, it may be necessary to press it first - QUICKLY before pressing the F8 Key. This will have to be done quickly before tapping the F8 key repeatedly.)
- Select safe mode and press enter
- Try booting to the desktop
Refer this link for more information:
“Start your computer in safe mode”
http://windows.microsoft.com/en-US/windows7/Start-your-computer-in-safe-mode
(B). Run a Virus scan. Refer this link
http://www.microsoft.com/security/malwareremove/default.aspx
Hope it helps
Thanks and regards
Dinesh-Microsoft Support
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