Windows 10: Trying to detect foreign language characters in a filename, running into problem in Powershell

In Powershell, I'm trying to detect whether certain character sets appear within a filename, such as Chinese, Korean, etc. I defined a variable to hold the patterns, like this:# Define the regular expression pattern for English and other European languages$euroPattern = "[\p{IsBasicLatin}\p{IsLatin-1Supplement}\p{IsLatinExtended-A}\p{IsLatinExtended-B}]"# Define the regular expression patterns for Korean, Chinese, and Japanese characters$koreanPattern = "[\p{IsHangul}]"$chinesePattern = "[\p{IsCJKUnifiedIdeographs}]"$japanesePattern = "[\p{IsHiragana}\p{IsKatakana}]"However, other than with th

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Foreign language character input

Foreign language characters (like ā instead of a) used to be accessed by typing Alt + 'the key you want', but now for some reason it is Alt + Ctrl + 'the key you want'. Can i change it back to the way it was? I looked all over but couldn't
find a way to do it. I have the language selected in the language bar.

 

What is the best way to remove filename characters limit?

Question 1. What is the proper way to remove filename characters limit? Please tell me step by step, I will follow exactly to avoid any mistakes. I read about removing filename characters limit in Windows 10, it required changes to the registry and it seems some people mention having problems. - - - Updated - - - One more question, I read this

source How to remove 260 characters limit of the Windows 10 NTFS paths? Question 2. Does it mean after the character limit is removed, it is possible to enter unlimited characters in the filename, but the filename will still only show 260 characters? Thank you.

 

Foreign Language Keyboards

I write material in five European languages and use the foreign language keyboards in order to get the characters not found in English. Will keyboards for French, German, Icelandic, and Spanish be available in Windows 10? Otherwise, i'll stay at Windows
7.