In the past two days, you need to go online for shopping. First, you need to install the add-on the page after logging on. However, if you do not have the chance to allow installation, a memory error occurs. "0x7c0c5a6c command cannot reference 0x7c0c5a6c memory", and then the page is prompted to fail to be restored. Then I logged on to the online banking system and encountered the same problem. I searched the internet and tried several memory error solutions, but they still didn't work. Then I tried several websites and installed the add-on. The results all showed memory errors. I thought about it carefully. It seems that I recently used my computer and thought that IE8 was last installed. Therefore, it is suspected that IE8 is a problem. Naturally, after a tour, the add-on can be installed normally, and the webpage can be used normally. Obviously, either it is an issue with IE or an issue with updating IE8. Solution: uninstall IE8 and restore it to the original IE7. Everything works normally. Ah, although the version in the test is quite new, it is unstable at the same time... It is reassuring to use the official version. The test version should be ready for a quick start and should not be used for a long time.