0x80244015 WU_E_PT_REFRESH_CACHE_REQUIRED error comes under very critical error category that stops user to update or install windows update. This error is also responsible for various other problems like slow system speed up, other error codes, unable to install or uninstall application etc. You may get this error in a following format:
Server replied with InvalidCookie or ServerChanged.
Caller should refresh its internal state then repeat the call to Protocol Talker.
Error 0x80244015 occurs because of missing system files, dll files, exe files and corrupted registry entries that are responsible for installing windows update. Other factor behind this error may be incorrect date/time/year settings or incorrect time zone settings. Destructive program like virus, malware or Trojan may also damage windows components and raise 0x80244015 errors.
How to fix 0x80244015 WU_E_PT_REFRESH_CACHE_REQUIRED errors from windows xp/vista/7/8?
The error 0x80244015 can be fixed using the following method easily. However, there may be several reasons behind this error so it is necessary to find the bottleneck and fix them.
1. You must clean your PC against destructive program. Run full system scan using updated antivirus and remove malicious programs.
2. Incompatible or outdated drivers are the major reason behind this error. If you have recently installed driver then remove. You also update the entire outdated windows driver.
3. Don’t avoid registry corruption. Registry file is the very important system database that keeps track of all the running or installed application. If this file gets corrupted or damaged then windows is unable to find related programs or files and resulting raise 0x80244015 WU_E_PT_REFRESH_CACHE_REQUIRED error.
Best way to fix this error is using advanced system optimizer utility as Advanced System Repair Tool. This is all in one PC Optimization Tool that fixes registry corruptions, driver errors, exe, sys, dll, ocx, activex and other critical errors and also removes malware and Trojan from your PC. It is very easy to use this tool. It makes a quick but deep scan of your PC and lists all the errors and problems and gives a single button to fix all the errors in one click. After fixing all the errors from your PC you will never get 0x80244015 WU_E_PT_REFRESH_CACHE_REQUIRED errors.