Start>Computer>Windows Explorer Unresponsive with Green Loading Bar

When I go to the start button and then click on "Computer" in Windows 7 and Windows Explorer opens the drives won't appear and that green loading bar just slowly moves across the address bar. The green loading bar eventually fills the address bar and just sits there and pulses but Windows Explorer is unresponsive. If I restart my machine that usually fixes the problem, but not always as sometimes I need to restart twice or more.

Folders under "Computer" (in the column on the left) will open such as "Program Files" etc. but Local Disk (C) and the DVD RW Drive (E) for example (in other words Windows Explorer) won't load up and display the icons for the drives.

My machine is Win7 Pro 64 bit, Intel Core i7 with 8GB of RAM and lots of hard drive space left.

How do I fix this?

Before I do that I need to know what "Theming explorer/system files" is. I'm heeding the warning at the scannow website. By Theming does it mean the visual display (personalize feature) will be changed back to the default? or all my other personal settings changed back to the default - or both?

If I need to back these up before I do the scan where do I find the files and folders. Which system files do I need to be concerned about?

"Windows resource protection did not find any integrity violations." Please see attached sfcdetails.txt

I apologize, I forgot to do that.

I'll do it now and get back to you. I do run disk check about once a month after I defragment, but I never knew how to read the scan log from the Event Viewer so I was just hoping and assuming file integrity corruption, if any, had been repaired.

Checking file system on C:
The type of the file system is NTFS.

A disk check has been scheduled.
Windows will now check the disk.

CHKDSK is verifying files (stage 1 of 5)...
692224 file records processed. File verification completed.
1493 large file records processed. 0 bad file records processed. 2 EA records processed. 46 reparse records processed. CHKDSK is verifying indexes (stage 2 of 5)...
867792 index entries processed. Index verification completed.
0 unindexed files scanned. 0 unindexed files recovered. CHKDSK is verifying security descriptors (stage 3 of 5)...
692224 file SDs/SIDs processed. Cleaning up 34 unused index entries from index $SII of file 0x9.
Cleaning up 34 unused index entries from index $SDH of file 0x9.
Cleaning up 34 unused security descriptors.
Security descriptor verification completed.
87785 data files processed. CHKDSK is verifying Usn Journal...
35305080 USN bytes processed. Usn Journal verification completed.
CHKDSK is verifying file data (stage 4 of 5)...
692208 files processed. File data verification completed.
CHKDSK is verifying free space (stage 5 of 5)...
113409340 free clusters processed. Free space verification is complete.
Windows has checked the file system and found no problems.

625027071 KB total disk space.
170358100 KB in 399172 files.
214688 KB in 87786 indexes.
0 KB in bad sectors.
816923 KB in use by the system.
65536 KB occupied by the log file.
453637360 KB available on disk.

4096 bytes in each allocation unit.
156256767 total allocation units on disk.
113409340 allocation units available on disk.

Internal Info:
00 90 0a 00 37 6e 07 00 3e f8 0c 00 00 00 00 00 ....7n..>.......
e6 24 00 00 2e 00 00 00 00 00 00 00 00 00 00 00 .$..............
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................

Windows has finished checking your disk.
Please wait while your computer restarts.