Appreciate any help in identifying the cause and suggested fix of this problem. PC auto reboots several times, once running, following msg found in event viewer: The computer has rebooted from a bugcheck. The bugcheck was: 0x1000000a (0xe100caa0, 0x00000002, 0x00000000, 0x804e804e). OS is XP Home, SP3 Have accumulated 9 minidump files in the last 2 days. Last actions before the problem started as follows: 1. Install Adobe Reader 11.0.06 update which failed with this error msg displayed: Error 1321: The Installer has insufficient privileges to modify this file: C:\Program Files\Adobe\Reader 11.0\Reader\plug_ins\(do not recall file name). Implemented Adobe's recommended fix is as follows: Shut down the computer, wait 5 seconds, and then turn the computer back on. As soon as the Windows logo appears, press the F8 key.Using the arrows keys, select Safe Mode With Networking and press Enter. In Windows Explorer, navigate to the parent folder listed in the 1321 or 1309 error message in your log file. Right-click the parent folder and choose Properties. In the Properties window, select the Security tab. In Group Or User Names, select Administrators (1). Then, in Permissions For Administrators, make sure that Full Control is set to Allow (2). In Group Or User Names, select System (1). Then, in Permissions For System, make sure that Full Control is set to Allow (2). Still in the Security tab (1), click Advanced (2). In the Advanced Security Settings window, make sure you're in the Permissions tab. Select Replace Permission Entries On All Child Objects With Entries Shown Here That Apply To Child Objects (1) and click OK (2). Click OK to close the Properties window. 3. After performing the above steps the update failed to install. 4. Deleted Adobe Reader 11.0.06 and installed 11.0.07. 5. Installed Glary_Utilities_v220.127.116.11 Thanks for any recommendations on how to fix this problem.