XPS 8500 Windows 7 PC from Dell. After several days of rebuilding the system, I tried to install the APC PowerChute Personal Edition (PCPE) 3.0.2 program to manage my UPS. The PCPE install would not proceed beyond the Destination Folder window -- clicking Next in that window would cause the Next button to flash, but nothing else would happen. I then had to cancel the PCPE install; the cancellation took place normally.   A google search on PCPE problems showed others had seen a similar problem, but the suggested solutions (e.g., re-registering vbscript.dll) did not work for me. I had used TeraByte Unlimited's BootIt Bare Metal to partition the disk on the PC and to do frequent backups to an external drive as I built my new system. To narrow down the PCPE install problem, I restored a very early backup to a test partition. This backup was essentially the bare Windows 7 system plus some other programs Dell had pre-installed. I had completed the Windows installation on first boot by supplying my user name, password, etc. I had installed no programs myself before making the backup. So this test environment was about as close to the start as I could get. First I tried installing PCPE on that bare system. It worked. (Actually I cancelled that install after I had gotten beyond the Destination Folder window where the PCPE install had failed previously.) I then did the next step I always take with a new Dell system; I used Control Panel "Programs and Features" to remove the McAfee SecurityCenter 30-day trial program that Dell pre-installs. What I would normally do right after that would be to install Norton Internet Security. Instead, for this test I tried the PCPE install again. Now it failed at the Destination Folder window, just as it did on my production partition. As a final nail in the coffin, I ran a Windows System Restore to reinstall the McAfee program (and whatever else its uninstall had removed). Now the PCPE install worked again. So the McAfee uninstall was breaking something that the PCPE install depended on. I notified Dell, but so far have received no response on this problem.   So I started googling again, e.g., for MCPR.EXE.  It turns out the removal of this trial program has caused problems for many people. See the Red Dawn post in en.community.dell.com/.../20181898.aspx The MCPR solution suggested there worked for me.   I did the following on a fresh test partition to which I had copied my Windows 7 production partition. I downloaded MCPR.exe from download.mcafee.com/.../MCPR.exe. Long ago I had removed the McAfee program from the production partition (and thus from this partition copy) via Control Panel "Programs and Features"; you must do that removal before running MCPR.   I next ran Ccleaner, then turned off Norton Internet Security and World Community Grid (BOINC); I had no desktop applications running. I then ran MCPR from an administrator command window. MCPR did its thing. I restarted Windows and ran the PCPE install. It fully installed PCPE with no problems. After some testing, I repeated the above on my production partition. What made this problem hard to solve was that the McAfee uninstall was done a number of days before the PCPE install problem was seen. Many other changes were made in the interim as I was rebuilding the new system. Relating the McAfee and PCPE events was not at all obvious.
Recently I had a problem installing APC's PowerChute Personal Edition onmy new Dell XPS 8500.  It appears the origin of the problem was daysbefore when I removed via the Windows Control Panel (apparently withouterrors) a 30-day trial copy of McAfee SecurityCenter.  Dell had put thatprogram on my PC; I wanted Norton Internet Security instead.  Fordetails and a solution which worked for me, see[URL]ꚋ.  Jeff
Removal of McAfee SecurityCenter Trial Program Causes Failure of PowerChute 
(PCPE) Install