Hello- I was redirected here after confirmation that my computer is clean from viruses and malware. Here is the issue Windows Explorer crashes when I try to access certain sub-folders with which I have been working a lot lately (ie. frequently accessing and modifying files), containing mostly MS Office files and PDFs. It also makes Word, Excel or almost any program crash when I try to browse through files using 'Open' (but strangely not using 'Save' or 'Save As'. Since I need to work on these files, I am accessing them one of two ways right now: - using the list of most recently open files in Word or Excel; - using 'Run' and typing the path to the file I need (which is cumbersome) Here is what I have tried to do about this: 1. I have run Windows in safe mode (F8 key) with the same result 2. I have tried to run the CHKDSK function in the recovery console. Several times. At first, it always returns the 'CHKDSK found one or more errors on the volume'; if I then run CHKDSK c: /r (the clean up routine), the CHKDSK c: /p no longer detects errors but the problem with Windows Explorer remains (and then after rebooting, CHKDSK finds problems with my drive again). I have done this a good half a dozen times by now. 3. I have run HDTune - the Error scan returned a perfect result (all sectors are green), and the SMART report says 'healthy'. I attach the report, because I do not know how to interpret the data (does it matter that the disk shows high numbers in the 'Data' column of 'Offline uncorrectable' and 'Ultra DMA CRC Error Count'? 4. My drive is new and works flawlessly. Could it still be a hardware problem? A registry problem? 5. I have created another partition on my HDD (E:\) and copied a parent folder containing (amongst other) my problematic corrupt sub-folders. Windows Explorer would crash when I explore E:\ 6. I have tried to delete the corrupt folder, and here is what happens: (i) I boot my machine (ii) open Windows Explorer (iii) Try to delete the parent folder E:\Work (it contains the corrupt sub-folder): Windows sends an error message referring to a file within the corrupt subfolder saying it is in use by another process (it is an Excel file and Excel is not running) (iv) Click OK, Restart and do (i) to (iii) again: same outcome, with a different Excel file being supposedly used by a running processes (v) Open the incriminated file using the 'Run' command (there's no other way), Excel opens and send me a Warning "cannot access file, which is locked for editing by 'another user' Please open as read-only' What is this 'another user'? This issue is really driving me nuts Any idea, someone? Many thanks in advance!